(a) David considers what manner of King he would be, when God would place him in the throne, promising openly, that he would be merciful and just.

2 I will behave myself wisely in a perfect way. {b} O when wilt thou come unto me? I will walk within my house with a perfect heart.

(b) Though as yet you deferred to place me in the kingly dignity, yet I will give myself to wisdom and uprightness being a private man.

3 I will set no wicked thing before mine eyes: I hate {c} the work of them that turn aside; it shall not cleave to me.

(c) He shows that magistrates do not do their duties, unless they are enemies to all vice.

4 A froward heart shall depart from me: I will not know a wicked person.

5 Whoso privily {d} slandereth his neighbour, him will I cut off: him that hath an high look and a proud heart will not I suffer.

(d) In promising to punish these vices, which are most pernicious in them that are about Kings, he declares that he will punish all.

6 Mine eyes shall be upon the {e} faithful of the land, that they may dwell with me: he that walketh in a perfect way, he shall serve me.

(e) He shows what the true use of the sword is, to punish the wicked and to maintain the good.

7 He that worketh deceit shall not dwell within my house: he that telleth lies shall not tarry in my sight.

8 {f} I will early destroy all the wicked of the land; that I may cut off all wicked doers from the city of the LORD.

(f) Magistrates must immediately punish vice, lest it grow to further inconvenience; and if heathen magistrates are bound to do this, how much more they who have the charge of the Church of God?