John Lightfoot on John 19:2

[Platted a crown of thorns, &c.] A most unquestionable token this, that Christ's kingdom was not of this world, when he was crowned only with thorns and briers, which were the curse of this earth, Genesis 3:18. Herod had put upon him a purple robe, Luke 23:11; and the soldiers added this crown. It is likewise said, that they also clothed him with this robe, that is, after he had been stripped, in order to be scourged.