Genesis 15:3
And Abram said, Behold, to me thou hast given no seed: and, lo, one born in my house is mine heir.
Cross-references
Genesis 12:2 is God's earlier promise to make Abram a great nation — the tension driving Abram's lament here, since he still has no child to fulfill it.
Genesis 13:16 promised Abram offspring like dust of the earth — making his complaint here about having no heir an expression of unfulfilled expectation.
In Genesis 11:30, Sarai's barrenness is the reason for Abram's complaint in 15:3 about having no heir.
In Genesis 16:1, Sarai's solution with Hagar directly follows from Abram's heirlessness in 15:3.
In Genesis 14:14, Abram has many trained servants, highlighting his childlessness in 15:3 where a servant might inherit.
Genesis 25:21 shows Isaac facing the same barrenness — he prays and God answers, continuing the pattern of God providing an heir to the patriarchal line.
Luke 1:7 shows Zechariah and Elizabeth also elderly and childless — a striking parallel where God again intervenes to give an heir in old age.
Acts 7:5 is Stephen's speech explicitly recalling this moment — Abram had no child when God promised him the land and descendants.
In Hebrews 10:36, perseverance to receive God's promise relates to Abram's doubt about receiving his promised heir.