Romans 10:8–9

But what does it say? “The word is near you, in your mouth and in your heart” (that is, the word of faith which we preach):

9 that if you confess with your mouth the Lord Jesus and believe in your heart that God has raised Him from the dead, you will be saved.

Acts 2:4

And they were all filled with the Holy Spirit and began to speak with other tongues, as the Spirit gave them utterance.

Deuteronomy

11:18–21

“Therefore you shall lay up these words of mine in your heart and in your soul, and bind them as a sign on your hand, and they shall be as frontlets between your eyes.

You shall teach them to your children, speaking of them when you sit in your house, when you walk by the way, when you lie down, and when you rise up.

And you shall write them on the doorposts of your house and on your gates,

that your days and the days of your children may be multiplied in the land of which the Lord swore to your fathers to give them, like the days of the heavens above the earth.