Hebrews 6:15

“And so, after he had patiently endured, etc..] He waited long for a son, from whom the Messiah was to spring, after he had had the promise of one; and he endured many afflictions with patience, in his journeys from place to place, throughout his life to the end: he obtained the promise; he was greatly blessed in temporal things; he lived to see the son of the promise, and his sons; he saw the day of Christ by faith, and now inherits the heavenly glory, which is the thing chiefly designed.”

“so--thus relying on the promise.”

“And so, after he had patiently endured - After he had waited for a long time. He did not faint or grow weary, but he persevered in a confident expectation of the fulfillment of what God had so solemnly promised. He obtained the promise - Evidently the promise referred to in the oath - that he would have a numerous posterity. The apostle intimates that he had waited for that a long time; that his faith did not waver, and that in due season the object of his wishes was granted. To see the force of this, we are to remember: (1)That when he was called by God from Haran, and when the promise of a numerous posterity was made to him, he was seventy-five years old; Genesis 12:1-5. Twenty-four years…”

“After he had waited - Thirty years. He obtained the promise - Isaac, the pledge of all the promises. Hebrews 6:16”

“6:15 what God had promised: Through Isaac, God made Abraham into a great nation (Exod 1:7).”

“Heb 6:12; Gen 12:2, Gen 12:3, Gen 15:2-6, Gen 17:16, Gen 17:17, Gen 21:2-7; Exo 1:7; Hab 2:2, Hab 2:3; Rom 4:17-25 Hebrews 6:16”