1 Peter 1:17

And if ye call on him as Father, who without respect of persons judgeth according to each man's work, pass the time of your sojourning in fear:

And if ye call on him as Father ... This does not imply any doubt of their calling upon the Father, being like Jesus' words, "If I go and prepare a place for you, etc." (John 14:3). Peter's familiarity with Jesus' instructions with reference to God as Father is reflected in this; but his admonition seems to be that, "Although you familiarly address God as Father, do not overlook the fact that he is also the Judge of every man: "Who without respect of persons judgeth according to each man's work."

According to each man's work ... This teaching is not peculiar to Peter; Paul declared that "God will render to every man according to his works" (Romans 2:6). The notion that being under the grace of God, and being saved by grace through faith, nullifies Scriptures such as these is extremely erroneous.

Pass the time of your sojourning in fear ... Another strand of the epistle's thought surfaces again here, as in 1 Peter 1:1. Some have alleged a contradiction between this and John's words, "Perfect love casteth out fear" (1 John 4:18); but, as Caffin pointed out:

The fear which both Peter and Paul (Philippians 2:12) commended is holy fear, the fear of a son for a loving father, the fear of displeasing God before whom we walk, the very God who gave his blessed Son to die for us, and will judge us at the last.[47]