The Law of God.
For I delight in the law of God, in my inner being.--Romans 7:22, ESV
THE PSALMIST DECLARES of the good man: "His delight is in the law of the Lord, and in His law doth he meditate day and night." He refers to his own experience, and exclaims: "O how I love Thy law! it is my meditation all the day." "Mine eyes prevent the night watches, that I might meditate in Thy word."--Testimonies for the Church, vol. 4, 526.
The will of God is expressed in the precepts of His holy law, and the principles of this law are the principles of heaven. The angels of heaven attain unto no higher knowledge than to know the will of God, and to do His will is the highest service that can engage their powers.
But in heaven, service is not rendered in the spirit of legality. When Satan rebelled against the law of Jehovah, the thought that there was a law came to the angels almost as an awakening to something unthought of. In their ministry the angels are not as servants, but as sons. There is perfect unity between them and their Creator. Obedience is to them no drudgery. Love for God makes their service a joy. So in every soul wherein Christ, the hope of glory dwells, His words are re-echoed, "I delight to do Thy will, O My God: yea, Thy law is within My heart." Psalm 40:8.--Thoughts From the Mount of Blessing, 109.
But his delight is in the law of the Lord,
And in His law he meditates day and night.
--Psalm 1:2, NKJV