Never stated anywhere in scripture. You choose God because God chose you. Not the other way around.
Scriptures telling man to choose, revere or love God
Deuteronomy 30:19–20 (LEB) — 19 I invoke as a witness against you today the heaven and the earth: life and death I have set before you, blessing and curse.
So choose life, so that you may live, you and your offspring, 20
by loving Yahweh your God by listening to his voice and by clinging to him, for he is your life and the length of your days in order for you to live on the land that Yahweh swore to your ancestors, to Abraham, to Isaac, and to Jacob, to give to them.”
1 Kings 18:21 (LEB) — 21 Elijah approached to all the people and said, “How long will you go limping over two opinions?
If Yahweh is God, go after him; but if Baal, go after him.” But the people did not answer him a word.
Proverbs 3:5–6 (LEB) — 5
Trust Yahweh with all your heart; do not lean toward your own understanding. 6
In all your ways acknowledge him, and he will straighten your paths.
Joshua 24:14–15 (LEB) — 14 “
So now, revere Yahweh and serve him in sincerity and faithfulness; remove the gods that your ancestors served beyond the river and in Egypt, and serve Yahweh. 15 But if it is bad in your eyes to serve Yahweh, choose for yourselves today whom you want to serve, whether it is the gods that your ancestors served beyond the river, or the gods of the Amorites in whose land you are living; but as for me and my household, we will serve Yahweh.”