Theological term
Son of Promise
2 sermons · All terms
Genesis 21:1-34
Genesis 21 records three interlocking events — the birth of Isaac, the expulsion of Ishmael, and Abraham's covenant with Abimelech — all of which demonstrate the faithfulness of God to his dual promise of seed and land made to Abraham at the call from Ur. The birth of Isaac after 25 years vindicates the persevering faith of Abraham and the sovereign elective purpose of God, who chose Isaac over Ishmael not on grounds of merit but according to his own prerogative. The expulsion of Ishmael, though painful to Abraham, is endorsed by God as consistent with his covenant plan, a pattern the Apostle Paul reads allegorically in Galatians 4 to expose the error of the Judaizers. The covenant at Beersheba, often read as a mere appendix, is in fact a down payment on the land promise, so that by the chapter's end Abraham holds both seed and a legally acknowledged foothold in Canaan, prompting his worship of El Olam — the everlasting God.
Free Grace Baptist Church - April 10, 2019 Bible Study
Genesis 17:15–27 is examined within the framework of the Abrahamic covenant, with particular attention to the declaration concerning Isaac, the obedience of Abraham, and the theological relationship between circumcision and baptism. The study draws a careful distinction between the covenant of circumcision — which governed membership in Old Covenant Israel by a works principle (Genesis 17:14) — and the covenant of grace, arguing with Nehemiah Coxe that the two must not be conflated. Colossians 2:11–12 is then opened to demonstrate that spiritual circumcision (regeneration) is the antitype of physical circumcision, and that baptism is the retrospective outward sign of that inward grace already received through faith — a sign that presupposes faith and therefore cannot legitimately be administered to infants.