The Sign in the Flesh: Genesis 17:13
The sign of the Abrahamic Covenant, the sign of circumcision, was “in your flesh” (Gen. 17:13), where it simultaneously marked God’s extraordinary promise and Abraham’s complete impotency.
“Blessed is the one … whose delight is in the law of the Lord, and who meditates on his law day and night. That person is like a tree planted by streams of water that yields its fruit in season.”
— Psalm 1:1-3