Proverbs 3:2

2. To encourage us to submit ourselves to all the restraints and injunctions of the divine law, we are assured (v. 2) that it is the certain way to long life and prosperity. (1.) It is the way to be long-lived. God's commandments shall add to us length of days; to a good useful life on earth, they shall add an eternal life in heaven, length of days for ever and ever, Ps 21 4. God shall be our life and the length of our days, and that will be indeed long life, with an addition. But, because length of days may possibly become a burden and a trouble, it is promised, (2.) That it shall prove the way to be easy too, so that even the days of old age shall not be evil days, but days in which thou shalt have pleasure: Peace shall they be continually adding to thee. As grace increases, peace shall increase; and of the increase of Christ's government and peace, in the heart as well as in the world, there shall be no end. Great and growing peace have those that love the law.

We are here taught to live a life of communion with God; and without controversy great is this mystery of godliness, and of great consequence to us, and, as is here shown, will be of unspeakable advantage.

my doctrine or counsel; or the law of God, which might be called his law, as the gospel is called Paul’s gospel, 2Th 2:8, because delivered by him. by diligent meditation and hearty affection.

Peace. These prefigured more substantial blessings. (Calmet)

Verses 1-6 In the way of believing obedience to God's commandments health and peace may commonly be enjoyed; and though our days may not be long upon earth, we shall live for ever in heaven. Let not mercy and truth forsake thee; God's mercy in promising, and his truth in performing: live up to them, keep up thine interest in them, and take the comfort of them. We must trust in the Lord with all our hearts, believing he is able and wise to do what is best. Those who know themselves, find their own understandings a broken reed, which, if they lean upon, will fail. Do not design any thing but what is lawful, and beg God to direct thee in every case, though it may seem quite plain. In all our ways that prove pleasant, in which we gain our point, we must acknowledge God with thankfulness. In all our ways that prove uncomfortable, and that are hedged up with thorns, we must acknowledge him with submission. It is promised, He shall direct thy paths; so that thy way shall be safe and good, and happy at last.