Genesis 26:22

And he removed from thence, and digged another well; and for that they strove not: and he called the name of it Rehoboth; and he said, For now the Lord hath made room for us, and we shall be fruitful in the land.

Cross-reference

In Genesis 17:6, God promised Abraham fruitfulness and nations. Isaac's room to flourish at Rehoboth reflects the beginning of that covenant promise unfolding.

In Genesis 41:52, Joseph names his son to mark fruitfulness in hardship, mirroring Isaac naming Rehoboth to mark God's provision after conflict.