TSK · Genesis 22:1

The thing was very grievous in Abraham's sight on account of his son.

The angel of Yahweh called to him out of the sky, and said, "Abraham, Abraham!" He said, "Here I am."

God spoke to Israel in the visions of the night, and said, "Jacob, Jacob!" He said, "Here I am."

Then he cried to Yahweh. Yahweh showed him a tree, and he threw it into the waters, and the waters were made sweet. There he made a statute and an ordinance for them, and there he tested them;

You shall remember all the way which Yahweh your God has led you these forty years in the wilderness, that he might humble you, to prove you, to know what was in your heart, whether you would keep his commandments, or not.

you shall not listen to the words of that prophet, or to that dreamer of dreams: for Yahweh your God proves you, to know whether you love Yahweh your God with all your heart and with all your soul.

that Yahweh called Samuel; and he said, "Here I am."

However in [the business of] the ambassadors of the princes of Babylon, who sent to him to inquire of the wonder that was done in the land, God left him, to try him, that he might know all that was in his heart.

I heard the Lord's voice, saying, "Whom shall I send, and who will go for us?" Then I said, "Here I am. Send me!"

By faith, Abraham, being tested, offered up Isaac. Yes, he who had gladly received the promises was offering up his one and only son;

Wasn't Abraham our father justified by works, in that he offered up Isaac his son on the altar?