2 Peter 1:10-15

10Wherefore, brethren, give the more diligence to make your calling and election sure: for if ye do these things, ye shall never stumble: 11for thus shall be richly supplied unto you the entrance into the eternal kingdom of our Lord and Saviour Jesus Christ.

12Wherefore I shall be ready always to put you in remembrance of these things, though ye know them, and are established in the truth which is with you. 13And I think it right, as long as I am in this tabernacle, to stir you up by putting you in remembrance; 14knowing that the putting off of my tabernacle cometh swiftly, even as our Lord Jesus Christ signified unto me. 15Yea, I will give diligence that at every time ye may be able after my decease to call these things to remembrance.