The hoary head is a crown of glory, if it is found in the way of {o} righteousness.

(o) That is, when it is joined with virtue, or else the older that the wicked are, the more they are to be abhorred.

Jamieson-Fausset-Brown Bible Commentary

31. (Compare Pr 20:29).

if-or, which may be supplied properly, or without it the sense is as in Pr 3:16; 4:10, that piety is blessed with long life.

Matthew Henry's Concise Commentary

16:27,28. Ungodly men bestow more pains to do mischief than would be needful to do good. The whisperer separates friends: what a hateful, but how common a character! 29,30. Some do all the mischief they can by force and violence, and are blind to the result. 31. Old people especially should be found in the way of religion and godliness. 32. To overcome our own passions, requires more steady management, than obtaining victory over an enemy. 33. All the disposal of Providence concerning our affairs, we must look upon to be the determining what we referred to God; and we must be reconciled to them accordingly. Blessed are those that give themselves up to the will of God; for he knows what is good for them.