Hear, O Israel: The LORD our God is one LORD:......And Jesus answered him, The first of all the commandments is, Hear, O Israel; The Lord our God is one Lord:
Deuteronomy 6:4/Mark 12:29
Mathematics of the Godhead:
1+1+1 = 1
Behold (1) my servant, whom (1) I uphold;
mine elect, in whom my soul delighteth;
I have put (1) my spirit upon him: he shall bring forth judgment to the Gentiles.
Isaiah 42:1
....baptizing them in the name of
the (1) Father,
and of the (1) Son,
and of the (1) Holy Ghost:
Mark 28:19