For if you possess these qualities and continue to grow in them, they will keep you from being ineffective and unproductive in your knowledge of our Lord Jesus Christ.
8. For if these things be in you. Then, he says, you will at length prove that Christ is really known by you, if ye be endued with virtue, temperance, and the other endowments. For the knowledge of Christ is an efficacious thing and a living root, which brings forth fruit.
You have obtained precious faith already, yet you must not rest there as if perfection were reached. Without all diligence you gain no ground in holiness; the slothful make nothing of religion. Strive, or you will not enter in at the strait gate.
AI summary
Commenting on 2 Peter 1:5-11
For if these things be in you,.... Are wrought in you by the Spirit of God, and exercised and performed by his assistance, who works in his people both to will and do: and abound; increase in their acts and exercises by the frequent performance of them: they make you; both by way of influence and evidence, that ye shall neither be barren nor unfruitful...