Sharper Iron from KFUO Radio

The LORD keeps the promise He has been repeating for twenty-five years when Isaac is conceived and born to Abraham and Sarah. Although Isaac’s name does recall his parents’ laughter at God’s promises, his name also serves as a reminder of the joy at God’s gift. After Isaac is weaned, conflict arises when Sarah sees Ishmael laughing. The LORD tells Abraham that it is right to send Ishmael away beca...

When Abraham sojourns in Gerar, he once again says that his wife Sarah is only his sister. The LORD acts swiftly to prevent Abimelech, the king in Gerar, from committing adultery with Sarah, lest there be any confusion concerning the promised son she will soon carry. Abimelech listens to God’s warning and speaks to Abraham about what has happened. Upon hearing Abraham’s answer, Abimelech gives gen...

Lot fails to act on God’s Word with urgency and needlessly delays leaving Sodom. The LORD remains merciful to Lot in his weakness, and the angels agree to Lot’s requests. The LORD’s destruction of Sodom and Gomorrah is just and calls all to repent of their sins. At the same time that the LORD is destroying the wickedness of sin, He is also rescuing His people in faithfulness to His promise. After...

When the two angels arrive in Sodom, Lot receives them with Christian welcome. Lot’s hospitality stands in stark contrast to the evil intentions of the men of Sodom. Whatever Lot’s intentions were in offering his daughters to the men, he was only adding evil to evil. The angels quickly intervene before the situation devolves further, striking the men of Sodom blind. When the angels urge Lot and hi...

As Abraham’s visitors begin to leave, the LORD deliberates about revealing to Abraham what is about to happen to Sodom and Gomorrah. The LORD shows His patience as He decides to go down and see the greatness of the outcry of the wickedness of these two cities. As the two angels turn toward Sodom, Abraham remains before the LORD to intercede on behalf of the righteous in the two wicked cities. He i...

When three visitors come to Abraham’s tent, he quickly shows them joyful and overflowing hospitality. These three are no ordinary visitors; this is the LORD and His angels who have come. As they eat the meal Abraham has served, the LORD serves Abraham in an even greater way. He promises that in about a year’s time, He will give Abraham the promised child through Sarah. Her laughter in the tent is...

Thirteen years after Ishmael’s birth, the LORD appears to Abram with the news that the birth of the promised child is imminent. The LORD gives both Abram and Sarai new names; they will now be called Abraham and Sarah. As a sign of the covenant the LORD has made with Abraham, the LORD gives Abraham and his descendants circumcision as a reminder that the promised child comes through God’s action. Al...

When Sarai sees that she remains barren, she tells Abram to have a child with her maidservant Hagar. If human wisdom thought this would help God keep His Word, the opposite proves true. Abram’s family life quickly experiences harm as Hagar runs away. Yet the LORD is quick to find Hagar. He calls her back to Abram’s household and makes a promise to Hagar’s son. Ishmael’s birth to Abram stands as a...

To make His promise more certain, the LORD identifies Himself to Abram as the One who brought Abram from his homeland to possess the Promised Land. When Abram asks for further confirmation, the LORD tells Abram to sacrifice several animals. The LORD attaches His Word to this sign that Abraham’s descendants will serve as slaves in a foreign nation, but the LORD will rescue them and bring them back...

After Abram rescues Lot, the LORD reassures Abram with His promise. Yet Abram sees that a household servant is currently his heir, and Abram questions the LORD what He will give since no child has yet been born to him. The LORD doubles down on His promise, telling Abram that a child will be born of his own loins. As a visual sermon, the LORD challenges Abram to count the stars. Such will be the nu...

Lot’s choice to go toward Sodom and Gomorrah quickly brings trouble when Lot and his household are captured during a war between various kings. When Abram hears of his nephew’s plight, he organizes his household to come to the rescue, bringing blessing to pagan kings along the way. When Abram returns, the king of Salem, Melchizedek, blesses Abram and receives a gift from the patriarch. Whereas the...

Abram’s wealth increased during his sojourn in Egypt, along with the wealth of his nephew Lot. When the two families attempt to live side-by-side upon their return, conflict ensues. Abram does not covet earthly wealth for himself and entrusts himself to the LORD by letting Lot choose which portion of land to inhabit. Lot’s choice foreshadows the later judgment upon Sodom and Gomorrah. When Abram r...

Due to a severe famine in Canaan, Abram takes his household to sojourn in Egypt. Out of fear that they will kill him on account of Sarai’s beauty, Abram instructs her to say that she is his sister. Although Abram has God’s promise, he attempts to help God keep it. God does, in fact, keep His promise to Abram by causing Pharaoh to deal well with Abram and enrich his household. The LORD uses a plagu...

The LORD speaks to Abram and tells him to leave his homeland to go to the place the LORD will show. The LORD gives His promise to Abram that he will become a great nation through whom all the families of the earth will be blessed. Though the line of the Seed will go through this family, He will still come for all the world. In faith, Abram goes as the LORD had spoken, passing through the whole lan...

Moses returns to the genealogy of the Promised Seed as he traces the generations from Shem to Terah. Although the ages are still impressive, the shortening years of the lives of men recalls sin’s deadly effect. When the genealogy reaches Terah, Moses focuses on his family, which like Noah’s before him, includes three sons. As the text focuses toward the son of Terah, Abram, who has a barren wife,...

After the flood, the LORD commanded the descendants of Noah to multiply and fill the earth. In rebellion against this Word of God, people in the plain of Shinar all settled together and began to build a tower to make a name for themselves. Their tower remained puny before the LORD, who came down and confused their language in order to accomplish His purpose of spreading people throughout the earth...

Moses details various nations that the LORD brings about through the three sons of Noah after the flood. The extensive record reminds us that all humanity shares a common ancestry going back to Noah, and the LORD cares about all humanity. Particular nations and individuals are highlighted due to their ongoing significance in the Old Testament and their enduring interactions with the nation of Isra...

After the LORD calls Noah and those with him off the ark, the narrative turns to focus more on the sons of Noah. Noah trusts the LORD’s promises in planting a vineyard. However, because sin still infects the world even after the flood, Noah overindulges on God’s gift of wine and becomes drunk. Ham sinfully exposes his father’s shame, while Shem and Japheth rightly cover him. This provides a pictur...

After the flood, the LORD makes a covenant with Noah and his offspring after him and with every living creature. This covenant is the LORD’s promise that He will never again flood the earth to destroy it and cut off all flesh. He sets His bow in the clouds as the certain sign that He will keep His promise. His bow is aimed not at humanity but at Himself, which points forward to Jesus’ cross. His h...

Noah’s first action upon leaving the ark is a sacrifice of thanksgiving to God for the fulfillment of His promises. This worship of faith is pleasing to the LORD, who responds with further divine service to His creation. Even though He knows that man’s heart remains sinful, the LORD promises that He will never again curse the earth or destroy every living creature as He has done, but He will inste...

When God remembered Noah, it was more than a mental recollection that Noah was there. God’s remembrance of Noah lead to His action of sending a wind to begin to dry the waters of the flood from off the earth. As the waters subsided and the ark came to rest on the mountains of Ararat, Noah used birds to discern what land was habitable. When the dove did not return after the second time, Noah uncove...

The LORD sent the flood He had promised when Noah was six hundred years old. Waters came from below and from above, and the LORD sent rain for forty days and forty nights to cover the whole earth even above the highest mountains. All flesh on the dry land died, just as the LORD had spoken. Yet, also just as the LORD had spoken, Noah and all those with him on the ark were rescued and sustained the...

Noah was righteous before the LORD through faith in the LORD’s promise. In judgment, the LORD determined to send a flood to make an end of all flesh due to the corruption and violence of sin. In mercy, the LORD promised to save Noah and his family through that same flood. The LORD gave Noah precise dimensions for the ark in which he would be saved, and the LORD gave Noah instruction about the incl...

In the generations after Adam, sin multiplied and led to growing wickedness among mankind. Even as the mysterious Nephilim capture the attention and imagination of Christians, the reality remains that violence was multiplying in the days of Noah. In mercy, the LORD promised a limit to this wickedness, even as His grief over mankind’s evil led Him to resolve to bring destruction and judgment upon H...

After the death of Abel and the departure of Cain, Moses records the genealogy of Adam through Seth. Banned from Eden, the sons of Adam inherit his sinful image and likeness. The first generations lived for incredibly long periods of time, seeing far more generations after them than we do now. This faithful line that goes through Seth believes and passes down the promises of God throughout their l...