The question that is asked in heaven is “Whom shall I send, and who will go for us?” (Isaiah 6:8). Notice, how the word “I” and “us” are used. This establishes both the Oneness of God (“I”) and the Trinity of  God (“us”). It further demonstrates the fact that the commission that is given to mankind is by the Trinity of God; by God the Father, God the Son and God the Holy Spirit. Jesus affirmed this when he gave the great commission by commanding, “go ye and teach all nations, baptizing them in the name of the Father, and of the Son and of the Holy Spirit” (Matthew 28:18-19).

Points to ponder:
If you hear the voice of God asking you today, “Whom shall I send, who will go for us?”, what is your response going to be? Will it be, “Here I am God, Send me!”

Isaiah 6:8 (KJV)
8 Also I heard the voice of the Lord, saying, Whom shall I send, and who will go for us? Then said I, Here am I; send me.

Matthew 28:18-19 (KJV)
18 And Jesus came and spake unto them, saying, All power is given unto me in heaven and in earth.
19 Go ye therefore, and teach all nations, baptizing them in the name of the Father, and of the Son, and of the Holy Ghost: