knowing that you were redeemed, not with corruptible things, with silver or gold, from the useless way of life handed down from your fathers,
From your vain conversation - Your “vain conduct, or manner of life.” See the notes at 1 Peter 1:15. The word “vain,” applied to conduct, (ματαίας mataias,) means properly “empty, fruitless.” It is a word often applied to the worship of idols, as being nothing, worthless, unable to help, Act 14:15; 1 Kings 16:13; 2 Kings 17:15; Jeremiah 2:5, Jeremiah 2:8,Jeremiah 2:19 and is probably used in a similar sense in this place. The apostle refers to their former worship of idols, and to all the abominations connected with that service, as being vain and unprofitable; as the worship of nothing real (compare 1 Corinthians 8:4, “We know that an idol is nothing in the world’), and as resulting in a course of life that answered none of the proper ends of living. From that they had been redeemed by the blood of Christ.