Matthew 4:10
Then said Jesus to him, get thee hence Satan: for it it written, "Thou shalt worship the Lord thy God, and him only shalt thou serve ."
Luke 4:8
but Jesus answered him, avant, satan, for it is written, "thou shalt worship the Lord thy God, and him only shalt thou serve."
Matthew 6:24
no man can serve two masters: for either he will hate the one, and love the other; or he will be attach'd to the one, and neglectful of the other. ye cannot serve God and Mamon.
Matthew 15:8
"this people, says he, draw nigh to me, they honour me with their lips: while their hearts are far from me.
John 4:24
God is a spirit, and they that worship him, must worship him in spirit and in truth.