2 Peter 1:8-10

8 for these things being in you, and abounding, make you to be neither slothful, nor unfruitful, in the knowledge of our Lord Jesus Christ.

9 But he who has not these things, is blind, shutting his eyes, having become forgetful of the purification of his old sins.

10 Wherefore, the rather, brethren, earnestly endeavor to make your calling and election sure; for doing these things, you shall never fall;