Isaiah 12:5

Sing unto the LORD; for he hath done excellent things: this is known in all the earth.

Sing unto the Lord because He has done excellent things, and let this be known in all the earth, for praise is joined with declaring His works among the peoples, calling upon His name, and exalting His name. The song belongs to those who have turned from evil and to the ransomed traveling the royal path to heaven, showing that way to be better and safer. Its words are fulfilled for God's people when they lay aside burdens God has not given them, receive Christ's righteousness, answer Christ's prayer, and serve the Lord with humility.

It is the song of that day when God's anger is turned away into comfort, when He is trusted without fear as salvation, strength, and song, when water is drawn with joy from the wells of salvation, and when the inhabitants of Zion cry out and shout because the Holy One of Israel is great in their midst. That day is when the Lord sets His hand the second time to recover the remnant of His people from Assyria and Egypt and all lands and gathers the outcasts of Israel and the dispersed of Judah from the four corners of the earth, while the root of Jesse stands as an ensign and the Gentiles seek Him. In that setting, praising the Lord, calling on His name, telling His deeds among the people, lifting up His name, singing for His excellent deeds made known in all the earth, and crying out in Zion belong together as one song.

Singing it expresses praise, trust, and joy in salvation, seeing the Saviour as refuge and as a shield at the right hand to defend from the arrows of Satan. It comforts the heart, giving peace and joy in His love with assurance that the Lord draws near. It removes sadness and discouragement and gives comfort and joy and strength to do His works, revealing reliance on the Redeemer who gave His life so none would perish but have everlasting life, and laying hold by living faith on God's strength and power for complete triumph over Satan and sin, making believers a help and blessing to others as the work advances.

When its truth is believed and spoken, it gives strength and clear voice to speak under the Spirit for nearly an hour without weariness, brings help and blessing to the sick including patients in wheel chairs, renews courage, improves health, and remains as a living reality of blessing. It is a precious promise of encouragement and refreshment for those praying for the streams of the water of life, to be lingered over, taken in, eaten, and digested like food sweeter than honey so that faint-heartedness passes away.