Genesis 18:21

I will go down now, and see whether they have done altogether according to the cry of it, which is come unto me; and if not, I will know.

Genesis 18:21 (KJV)

Context

This verse belongs to the account of Abraham receiving three visitors at Mamre. The Lord had just promised Abraham and Sarah a son in their old age, and Sarah laughed in disbelief. The Lord answered that nothing is too hard for Him. In verse 20, the Lord tells Abraham that the outcry against Sodom and Gomorrah is great and their sin very grievous. Now He declares that He will go down to see whether their deeds match that outcry.

Meaning

The words “I will go down now, and see” use human language to describe God. This is called anthropomorphism, speaking of God as if He had a body. God already knows all things, so He does not need to investigate. The phrase “and if not, I will know” stresses His complete knowledge. Nothing is hidden from Him, and He never judges on incomplete information.

The Hebrew phrase translated “have done altogether” can mean “have made a complete end” or “have brought to completion.” This suggests that the sin of Sodom had reached its full measure. The Latin Vulgate renders it “they have completed in deed,” reinforcing the idea that their wickedness was fully consummated. God’s judgment is not hasty; He examines the situation thoroughly before acting.

Biblical connections

This pattern of divine investigation appears in Genesis 11:5, where the Lord “came down to see” the city and tower of Babel before confusing their language. That passage directly parallels this verse: in both cases, God personally descends to examine human rebellion before responding. Psalm 53:2 also shows God looking down from heaven to see if anyone understands, confirming that His examination precedes His action. These connections show that God’s judgment is never hasty or unjust.

Application

God’s omniscience means He sees every hidden wrong and every silent cry. He does not remain distant; He personally involves Himself in human affairs. This should encourage believers to live honestly, knowing that God sees all. It also gives comfort that God hears the cries of the oppressed and will act in justice. Because God knows all, believers can trust that no injustice escapes His notice.

Reflection

This verse prepares for Abraham’s intercession for Sodom in the following verses. Abraham approaches God boldly, concerned for the righteous. The Lord’s willingness to listen shows His mercy. Believers today can approach God with reverence and confidence, trusting His perfect knowledge and righteous judgment.