Mark 12:32-33 King James Version (KJV)
32 And the scribe said unto him, Well, Master, thou hast said the truth: for there is one God; and there is none other but he:
33 And to love him with all the heart, and with all the understanding, and with all the soul, and with all the strength, and to love his neighbour as himself, is more than all whole burnt offerings and sacrifices.
1 Corinthians 8:5-6 King James Version (KJV)
5 For though there be that are called gods, whether in heaven or in earth, (as there be gods many, and lords many,)
6 But to us there is but one God, the Father, of whom are all things, and we in him; and one Lord Jesus Christ, by whom are all things, and we by him.