Deuteronomy

6:4; Hear, O Israel: The Lord Our God is one Lord: 5; And Thou shalt love the Lord thy God with all thine heart, and with all thy soul, and with all thy might.

 

  Ephesians

4:5;One Lord, one faith, one baptism

1 Timothy

3:18; And with out controversy great is the mystery of godliness: God was manifest in the flesh, justified in the Spirit, seen of angels, preached unto the Gentiles, believed on in the world, received up into glory.

1John

2:23:Whosoever denieth the Son, the same hath not the Father: [but] he that acknowledgeth the Son hath the Father also.