God will provide. What a powerful promise. Isaac saw that up close and more personally than any of us could every imagine. He saw it at the last moment. When there was no way of escape. Except God provided. It was a dramatic show of God's providential care and faithfulness - even as it was a test of faith and obedience for Abraham.
But we don't call this mountain The Mountain of Obedient Faith, we call it On the mountain of the Lord it will be provided. We remember Abraham's faith. But we are pointed toward God's faithfulness. We are reminded of God's grace. We are grounded in God's provision of a lamb.