The pronouns in the Bible that refer to “God” are singular and there are lots of them. “The Hebrew Bible and the New Testament contain well over twenty thousand pronouns and verbs describing the One God” (Anthony Buzzard and Charles Hunting, The Doctrine of the Trinity: Christianity’s Self-inflicted Wound, International Scholars Publications, New York, 1998, p. 17). Singular pronouns include “I” “my” and “he.” We would expect it to say “For God so loved the world that they gave the Father’s only begotten Son….” if “God” were composed of three co-equal beings who each had their own mind and together agreed to send Christ. The fact that the pronouns in the Bible refer to “God” as a singular being is also evidence that there is no Trinity.
The Old Testament prophecies about the coming Messiah foretold that he would be a human being who would be the offspring of Eve (Genesis 3:15); a descendant of Abraham (Genesis 12:3; 18:18; 22:18); a descendant of Judah (Genesis 49:10; a prophet like Moses (Deuteronomy 18:15); a son of David (2 Samuel 7:12-13; Isaiah 11:1); a king ruling under Yahweh (Psalm 110:1); and a ruler from among the people of Israel (Jeremiah 30:21). That explains why the people were all expecting a human Messiah. Psalm 110:1 merits special attention because it's especially clear but has been misunderstood and misrepresented by most English versions that read “The LORD says to my Lord….” The word “LORD” is Yahweh, but many Trinitarian commentators argue that “my Lord” in this verse is the Hebrew word "adonai" that is another name for God, and that would provide proof of the divinity of the Messiah. But the Hebrew text does not use "adonai" but rather "adoni" which is always used in Scripture to describe human masters and lords, but never God.
The Old Testament refers to the Messiah as “one like a son of man” and the phrase “son of man” was a Semitic idiom for a human being and it's used that way throughout the Old Testament. The phrase “son of man” also became a title of the Messiah when Daniel referred to him as “one like a son of man” (Daniel 7:13) and that explains why Jesus called himself “the son of man” many times. The use of the “son of man” in reference to the Messiah is one more piece of evidence that Jesus was fully human and one more reason that people were expecting the Messiah to be human. The New Testament teaches Jesus was a man and Jesus himself said he was “a man who has told you the truth” John 8:40. Jesus was not being disingenuous and hiding his “divine nature” but rather was making a factual statement that reinforced what the Jews were expecting of the Messiah—that he would be a fully human man.
The apostles also taught Jesus was a man and we see this when the Apostle Peter spoke in his sermon to the crowds gathered on the Day of Pentecost making a very clear declaration that Jesus was a man approved of God: “Ye men of Israel, hear these words; Jesus of Nazareth, a man approved of God among you by miracles and wonders and signs, which God did by him in the midst of you…” (Acts 2:22). Here Peter clearly taught that Jesus was a man and that God did miracles “by him.” Paul also taught Jesus was a man and we can see that when he was in Athens teaching a crowd of unsaved Gentiles about Jesus Christ and said that God would judge the world “by the man whom He has appointed” (Acts 17:31). Paul never said or implied that Jesus was anything but a “man.”
