Isaiah 12:5 Sing unto the LORD; for he hath done excellent things: this is known in all the earth.
He surely hath done excellent things. And the whole earth should know that. Isaiah could say that God was his salvation. He could speak of drawing water from the well of salvation.
Isaiah 12:3 Therefore with joy shall ye draw water out of the wells of salvation.
But most of the world can not speak these things. Isaiah said that we were to declare His doings among the people. We are to make mention that His name is exalted.
Isaiah 12:4 And in that day shall ye say, Praise the LORD, call upon his name, declare his doings among the people, make mention that his name is exalted.
Is this not a call to carry the message of our God to the world? We mention his goodness in our testimony meetings inside the four walls of our church or maybe even in the work place with other Christians but what is being done to get this message to the Muslims, the Chinese, the pagans of this world.
They need to know that they can live without fear.
Isaiah 12:2 Behold, God is my salvation; I will trust, and not be afraid: for the LORD JEHOVAH is my strength and my song; he also is become my salvation.
They too need to be able to draw water out of the wells of salvation. Who will go for Him?
Isaiah 6:8 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.