Footprints in the sand

The poem:

Footprints in the Sand.

A man once dreamt that he walked along the beach, and as he walked along, he saw his life flash before his eyes. As he looked back over his life, he saw that for every memory there were two sets of footprints in the sand, one belonging to himself and the other belonging to the Lord. But as he looked more closely, he saw that for the most difficult and painful memories in his life, there was only one set of footprints. Turning to the Lord, he said, “Lord, when I needed you the most, why did you leave me?” And you might know what God said back. God says back, “those were the moments I carried you.”

Some Jewish scholars pointed to the idea's original source in Isaiah 49 14-16

And Zion said, "The Lord has forsaken me, and the Lord has forgotten me." Shall a woman forget her sucking child, from having mercy on the child of her womb? These too shall forget, but I will not forget you.

Behold on [My] hands have I engraved you; your walls are before Me always.