But God Is Faithful

Genesis 20

We all have our moments. Like Abraham, we can find ourselves along the way encountering different people, different places, and seasons marked by both faith and failure. This chapter opens with Abraham still sojourning and still living as a pilgrim in the land of promise. Abraham was a man of faith, but he was also still a man growing in God’s grace. Even after years of walking with God, he falls into an old pattern. As Abraham enters Gerar, he tells Abimelech that Sarah is his sister, repeating the same compromise he made years earlier in Egypt (Genesis 12:13).

But Genesis 20 is not merely about Abraham’s failure. It is about God’s protection of His promise. Sarah was not just preserved for Abraham’s sake, but for the sake of the covenant. God had promised a son, and Sarah was the chosen vessel through whom that promise would come. Through Sarah would come Isaac, through Isaac the covenant line, and through that line the Redeemer, Jesus Christ. That is why this chapter is important. Before Abimelech ever touched Sarah, “God came to Abimelech in a dream by night” and said, “Behold, thou art but a dead man, for the woman which thou hast taken; for she is a man’s wife” (Genesis 20:3). Abraham acted in fear, but God remained faithful. Abraham compromised, but God still intervened. Abraham could not protect the promise because his fear got in the way, but God stepped in, warned Abimelech, restrained him, and protected what Abraham was not protecting.

What is striking in this chapter is that Abimelech, a pagan king, responds with more integrity than Abraham. Abraham’s half-truth was still a whole lie. Yes, Sarah was his half-sister, but Abraham used truth to create a false conclusion. What was technically true was morally dishonest, and in the eyes of the world his compromise damaged his witness. Instead of strengthening Abraham’s testimony, it weakened it before an ungodly man who now found himself rebuking the prophet of God. Yet even here, God’s providence is on full display. The Lord tells Abimelech, “Yea, I know that thou didst this in the integrity of thy heart… for I also withheld thee from sinning against me: therefore suffered I thee not to touch her” (Genesis 20:6). God was not merely acknowledging the event. He was declaring that He knew the full truth beyond what the eye could see. He knew Abimelech’s motives, his ignorance, and his innocence. And more than that, He makes it clear that Abimelech had not touched Sarah because God Himself restrained him. “I also withheld thee…” The Lord not only sees sin, He restrains it. He not only responds to evil, He often prevents it. How many things has God kept us from that we never even knew were possible?

And in one of the great ironies of grace, the first time the word prophet appears in Scripture is here in Genesis 20:7, spoken over Abraham in the middle of his failure: “For he is a prophet, and he shall pray for thee, and thou shalt live” (Genesis 20:7). Abraham faltered, yet God still identified him by calling, not merely by conduct. That does not excuse Abraham’s sin, but it does magnify God’s grace. Abraham is corrected, but not cast away. Exposed, but not abandoned. Humbled, but still heard. And more than that, he still prays. The man who failed is still called to intercede, and Abraham prays, and God heals Abimelech and his house.That is the reminder of Genesis 20. Even men and women of faith can still make mistakes, but our shortcomings do not alter the plan of God. Abraham failed, yet God still protected His promise. Abraham stumbled, yet God still used him. Even Abimelech, a godless man who was not seeking the Lord, came to fear God through the middle of Abraham’s failure.

God redeemed what Abraham mishandled and turned it into an opportunity for correction, restraint, and witness. And He still does the same today. It is important to remember that Abraham was already in covenant with God. He had already believed the Lord, and “he counted it to him for righteousness” (Genesis 15:6). Abraham’s failure in Gerar did not undo his standing with God. His fear disrupted his witness, but it did not nullify the covenant. God’s correction in this chapter was not the rejection of a condemned man, but the loving discipline of a covenant son. Abraham stumbled, but he was still the Lord’s.

The same is true for us today. As believers, we have been saved “by grace… through faith” (Ephesians 2:8), and redeemed “with the precious blood of Christ” (1 Peter 1:19). Yet even after redemption, we still journey through this world learning to trust God more fully. We are still called to “walk by faith, not by sight” (2 Corinthians 5:7), to “walk in the light, as he is in the light” (1 John 1:7), and to be “an example of the believers” (1 Timothy 4:12). There will still be moments where fear gets in the way, where wisdom falters, and where our witness is not what it should be. Yet even in our sanctification, God is still able to redeem our shortcomings, salvage what we have mishandled, and work through what we would have otherwise ruined. He corrects us, redirects us, and by His grace remains faithful through it all.