For Their Eternal Preservation. I want you to see three things in our text. This is a very simple, loving, and safe word of instruction. But, it is also an urgent exhortation. He means that we must abide faithfully in the truth taught by our Lord.
Truth is unchanging.
The gospel is fixed and unalterable. As you grow in grace you may know more about the truth than you did when you were first converted. But, see to it that you ever abide in the truth. Do not be deceived by modern inventions. Hold fast the old gospel of substitution.