John Gill's Exposition of the Whole Bible
Psalms 105:21
He made him lord of his house,.... That is, Pharaoh made Joseph lord chamberlain of his household; after he had him to court, and he had interpreted his dreams to him to his great satisfaction, and had given him such prudent advice to provide against the years of famine; see Genesis 41:33. So Christ, after his resurrection, was received up into heaven, and was made and declared Lord and Christ, Lord of all, having all power in heaven and earth given to him; particularly had the care of the church committed to him, which is the house of God, of his building, and where he dwells; where his children are born, brought up, and provided for. Here Christ is as a Son over his own house, as the owner and proprietor of it; here he is King, Priest, and Prophet; and is the provider for all in it, both of food and clothing:
of him the whole family in heaven and in earth is named, Ephesians 3:15, though he makes use of under stewards, to give to everyone their portion of meat in due season.
And ruler of all his substance, or "possession" h; lord treasurer of all his revenue, Genesis 41:40. Herein also he was a type of Christ, who, as God, is possessor of heaven and earth, being the Creator of them; but, as Mediator, he has all things delivered into his hands; all are at his dispose, to subserve the ends of his mediatorial office; he has all temporal things, gold and silver, riches and honour, to bestow upon men at pleasure; more especially all spiritual things are with him; the gifts of the Spirit, which he has without measure; and the fulness of all grace, which it has pleased the Father should dwell in him; the blessings of the everlasting covenant, and the promises of it; all the riches of grace, pardoning, justifying, and adopting grace, and all the riches of glory.
h קנינו "possessione sua", Pagninus, Montanus; so Junius Tremellius, Piscator, c.