Abram and Sarai are renamed by “I am” due to His covenant with them. “I am” then proclaims that Sarai, at age 90, will be with child. The miracle conception of Isaac parallels the immaculate conception of Jesus. Jesus is the one from Eve’s offspring, to Sarai’s offspring, down to Bathsheba’s offspring who will complete the covenant to Abraham: that his offspring will be a blessing to all the families of the earth. (Gen. 12:3b)
OT Reading: Genesis 17:1-8; 15-19
NT Reading: Galatians 3: 27-29
Memory: Genesis 17:19
Next Step: Genesis 23-24