Charles H. Spurgeon on Psalms 71:23

My lips shall greatly rejoice when I sing unto thee. It shall be no weariness to me to praise thee. It shall be a delightful recreation, a solace, a joy. The essence of song lies in the holy joy of the singer. And my soul, which thou hast redeemed. Soul singing is the soul of singing. Till men are redeemed, they are like instruments out of tune; but when once the precious blood has set them at liberty, then are they fitted to magnify the Lord who bought them. Our being bought with a price is a more than sufficient reason for our dedicating ourselves to the earnest worship of God our Saviour. Here is the final vow of praise.