Jesus

Jesus affirms God's divinity in the New Testament by referring to God as His God too rather than attributing himself with divinity. "Go to my brethren, and say unto them, I ascend unto my Father, and your Father; and to my God, and your God." (John 20:17)

Jesus affirming that God is one in the book of Matthew
"And, behold one came and said unto him, Good Master, what good things shall I do, that I may have eternal life? And he said unto him, Why callest thou me good? There is none good but one, that is, God: But thou wilt enter into life, keep the commandments (Matt. 19:16-17)

Another affirmation in Mark: "One of the scribes came. and asked him, which is the first commandment of all? And Jesus answered him , The first of all the commandments is, Hear O Israel, the Lord, our God, is One Lord: and thou shall love the Lord, thy God, with all thy heart, and with all thy soul, and with all thy mind, and with all thy strength: This is the first commandment.. 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." (Mark 12:29-30 & 32)