'I Will Be with You' in the Bible

And he said, Truly I will be with you; and this will be the sign to you that I have sent you: when you have taken the children of Israel out of Egypt, you will give worship to God on this mountain.

So go now, and I will be with your mouth, teaching you what to say.

Let him give ear to your voice, and you will put my words in his mouth; and I will be with your mouth and with his, teaching you what you have to do.