To grow in grace is the first duty and privilege of the believer in the Lord Jesus Christ. Those who stop growing intellectually soon die intellectually. The same holds true in the spiritual life.Growth is the proof of life. Our Saviour desires that we mount up into "heavenly places." When a man is going up in a balloon, he takes bags of sand as ballast; and when he wants to mount higher, he throws some of the sand out. The more he throws out, the higher he goes. If we want to mount to the heights of spiritual blessing, we must throw overboard the things of the flesh, the world and the devil. The measure of our happiness in life will be in proportion to our surrender to Christ.