'In Me' in the Bible

And whoever causes one of these little ones [i.e., humble followers of the Lord. See Matt. 18:6] who believes in me to be led astray [from God], he would have been better off to have had a huge millstone tied around his neck and thrown into the ocean [Note: This was a heavy, circular stone rolled over grain to crush it, and moved by an animal walking in a circle].

And Jesus said to him, "Go on your way, your faith [in me] has made you well." And immediately his sight was restored, and he began following Jesus along the road.