The true Christian is not "heady"; on the contrary, his consecration to the Lord figuratively decapitated him. He lost his head, renounced his own will and self-rule, and submitted himself as a disciple of Jesus Christ, to the absolute control of Jesus, the Head. … The true Christian therefore, in every affair of life, in respect to its pleasures as well as in respect to its burdens and trials, appeals to his Head for direction, to know how and what to do or say—yes, to have even the very thoughts of his mind in full conformity to the will of God in Christ.
We are in the last days; and, true to the Apostle's description, these are perilous times, not only in the world but also among Christians. "The [so the Greek] men," here described, belong to the antitypical Jannes and Jambres classes (v. 8). Treacherous, indeed, have they been against their Lord and former brethren, whom they, like Judas of old, sell for gain. In their stubbornness, they are truly heady. The life of self-denial, flowing from love to God, has lost its charm for them, and is dead by reason of their love of selfish and worldly indulgence.
1 Tim. 4:1, 2; 2 Pet. 2:1-3, 10-22; 3:3; 1 John 2:18, 19; 2 John 1:7, 10, 11; 3 John 1:9-11; Jude 1:3, 4, 8-19; Heb. 6:4-6; 10:26-29; 1 John 5:16.