The essential message of the near-sacrifice of Isaac is 'Have faith in God and obey Him'.

Only after the fact (midrash and Rashi commentary).

Sacrifice of Isaac - Caravaggio - was created in 1603.

If you carefully read that section, you realize that Isaac was never made aware of his fathers near sacrifice of him. They wound up sacrificing a sheep. Abraham never told him his intentions. G-d is good.

Isaac was a young lad , and he asked Abraham , where is the lamb for the sacrifice.