What is it to know God?

John Calvin, Institutes of the Christian Religion, Chapter 2 | “…it will not be sufficient simply to hold that [God] is the only being whom all ought to worship and adore, unless we are also persuaded that he is the fountain of all goodness, and that we must seek everything in him, and in none but him. My meaning is: we must be persuaded not only that as he once formed the world, so he sustains it by his boundless power, governs it by his wisdom, preserves it by his goodness, in particular, rules the human race with justice and judgment, bears with them in mercy, shields them by his protection; but also that not a particle of light, or wisdom, or justice, or power, or rectitude, or genuine truth, will anywhere be found, which does not flow from him, and of which he is not the cause; in this way we must learn to expect and ask all things from him, and thankfully ascribe to him whatever we receive… For, until men feel that they owe everything to God, that they are cherished by his paternal care, and that he is the author of all their blessings, so that naught is to be looked for away from him, they will never submit to him in voluntary obedience; no, unless they place their entire happiness in him, they will never yield up their whole selves to him in truth and sincerity.”