I have inclined mine heart to perform thy statutes alway, even unto the end.

King James Translators' Notes

to perform: Heb. to do

Matthew Henry's Concise Commentary

119:105-112 The word of God directs us in our work and way, and a dark place indeed the world would be without it. The commandment is a lamp kept burning with the oil of the Spirit, as a light to direct us in the choice of our way, and the steps we take in that way. The keeping of God's commands here meant, was that of a sinner under a dispensation of mercy, of a believer having part in the covenant of grace. The psalmist is often afflicted; but with longing desires to become more holy, offers up daily prayers for quickening grace. We cannot offer any thing to God, that he will accept but what he is pleased to teach us to do. To have our soul or life continually in our hands, implies constant danger of life; yet he did not forget God's promises nor his precepts. Numberless are the snares laid by the wicked; and happy is that servant of God, whom they have not caused to err from his Master's precepts. Heavenly treasures are a heritage for ever; all the saints accept them as such, therefore they can be content with little of this world. We must look for comfort only in the way of duty, and that duty must be done. A good man, by the grace of God, brings his heart to his work, then it is done well.