Thou shalt not kill.

Wesley's Notes

5:17 Thou shalt not kill - Have you not tempted any one, to what might shorten his life? Have you tempted none to intemperance? Have you suffered none to be intemperate under your roof, or in your company? Have you done all you could in every place, to prevent intemperance of all kinds! Are you guilty of no degree of self - murder? Do you never eat or drink any thing because you like it, although you have reason to believe, it is prejudicial to your health? Have you constantly done whatever you had reason to believe was conducive to it? Have you not hated your neighbour in your heart? Have you reproved him that committed sin in your sight? If not, you have in God's account hated him, seeing you suffered sin upon him. Have you loved all men as your own soul? As Christ loved us? Have you done unto all men, as in like circumstances, you would they should do to you? Have you done all in your power to help your neighbours, enemies as well as friends? Have you laboured to deliver every soul you could from sin and misery? Have you shewed that you loved all men as yourself, by a constant, earnest endeavour, to fill all places with holiness and happiness, with the knowledge and love of God?

Matthew Henry's Concise Commentary

5:6-22 There is some variation here from Ex 20 as between the Lord's prayer in Mt 6 and Lu 11. It is more necessary that we tie ourselves to the things, than to the words unalterably. The original reason for hallowing the sabbath, taken from God's resting from the work of creation on the seventh day, is not here mentioned. Though this ever remains in force, it is not the only reason. Here it is taken from Israel's deliverance out of Egypt; for that was typical of our redemption by Jesus Christ, in remembrance of which the Christian sabbath was to be observed. In the resurrection of Christ we were brought into the glorious liberty of the children of God, with a mighty hand, and an outstretched arm. How sweet is it to a soul truly distressed under the terrors of a broken law, to hear the mild and soul-reviving language of the gospel!