Hebrews 11:15
And truly, if they had been mindful of that country from whence they came out, they might have had opportunity to have returned.
Cross-reference
Genesis 11:31
Historical context
In Genesis 11:31, Terah and Abram leave Ur — the very departure that Hebrews 11:15 says they could have returned to but did not.
Genesis 24:6–8
Parallel
In Genesis 24:6-8, Abraham forbids Isaac from going back to Mesopotamia — directly illustrates Hebrews 11:15's insistence on not returning.
Numbers 14:4
Contrast
Numbers 14:4 shows the Israelites wanting to return to Egypt — the opposite of the patriarchs' faith who did not desire to return to the land they left.