Two things Ezra blessed God for: 1. For his commission. If any good appear in our hearts, or in the hearts of others, we must own that God put it there, and bless him; it is he that worketh in us, both to will and to do that which is good.
2. For his encouragement: God has extended mercy to me. Ezra was a man of courage, yet he ascribed this not to his own heart, but to God's hand. If God give us his hand, we are bold and cheerful; if he withdraw it, we are weak as water.
Whatever we are enabled to do for God and those around us, God must have all the glory.