That Jesus Christ is God is evident from many passages of Scripture (e.g. John 20:28; Titus 2:13). Other passages of Scripture identify Him as Jehovah, the proper name of the one and only true God. Jehovah is derived from a Hebrew verb that means to be. When asked by Moses what His name was, “God said unto Moses, I AM THAT I AM! and he said Thus shalt thou say unto the children of Israel, I AM hath sent me unto you” (Ex. 3:14). Being self-existent, Jehovah is. He alone is a true Being; man, being created by God, is a creature
It has been alleged that Jesus Christ never claimed He was God. This assertion is false (Matt. 26:63, 64). But more to the point, Jesus asserted He was Jehovah every time He said “I am.” To the frightened disciples in the midst of a storm at sea Jesus came walking on the water, assuring them when they thought He was a spirit by saying, “Be of good cheer; it is I; be not afraid” (Mark 6:50). The proper English “It is I” is “I am” in the Greek text. The passages in which Jesus said “I am” are too numerous to mention in this space, but they are well-known.
Perhaps the most conclusive evidence that Jesus is Jehovah is found in John 12:39-41. By the inspiration of the Holy Spirit, these words which refer to Isaiah 6 identify Jesus Christ as Jehovah. Note that the saying of Isaiah the Prophet was fulfilled by the people’s not believing on Jesus despite His many miracles (John 12:37, 38). Then, referring to Isaiah 6, John wrote, “These things said Esaias, when he saw his [Jesus] glory, and spake of him.” Isaiah saw the Lord sitting upon a throne, high and lifted up, and the seraphim crying, “Holy, holy, holy, is Jehovah of hosts!” The Prophet also said, “Mine eyes have seen the King, Jehovah of hosts.” These words confirm that Jesus was Jehovah.