Psalm 40: Here Am I, Lord

Here am I, Lord; here am I, Lord.
I come to do your will; I come to do your will.
I have waited for the Lord;
he stooped towards me and heard my cry,
placed a new song in my mouth to sing,
sing out praises to my king.
Now your law is written in my heart
and to do your will is my delight.
You have given me the ears to hear,
so behold I come to you.
I announce to all that you are God;
I have not restrained my lips.
God, your justice reigns for all in need;
for your people, Lord, I sing.