Charles Spurgeon Commentary 2 Peter 3:18

"But grow in the grace and knowledge of our Lord and Saviour Jesus Christ. To him [be] the glory both now and for ever. Amen." — 2 Peter 3:18 (ASV)

And in the knowledge of our Lord and Saviour Jesus Christ. To him be glory both now and for ever. Amen.

An ascription of praise to Christ is never out of place at the beginning or at the end of an Epistle, or in the middle of it. You may praise the Lord Jesus Christ anywhere at any time; it shall never be a waste of time to sing to his name: "To him be glory both now and for ever. Amen."