The Apostle Peter
1 Peter 1:17ESV·traditional attribution

And if you call on him as Father who judges impartially according to each one’s deeds, conduct yourselves with fear throughout the time of your exile,

John Calvin Reformed @genevareformer

17 And if ye call on the Father They are said here to call on God the Father, who professed themselves to be his children, as Moses says, that the name of Jacob was called on Ephraim and Manasseh, that they might be counted his children.

Matthew Henry Presbyterian @wholebiblehenry

Here the apostle begins his exhortations to those whose glorious state he had before described, thereby instructing us that Christianity is a doctrine according to godliness, designed to make us not only wiser, but better. I. He exhorts them to sobriety and holiness. 1. Wherefore gird up the loins of your mind, etc., Pe1 1:13.

Commenting on 1 Peter 1:13-23

John Gill Reformed Baptist @doctorgill

And if ye call on the Father,.... Of Christ, and of all the saints; or "seeing" ye do. This is a fresh argument, engaging to holiness of life and conversation. Invocation of God includes the whole worship of him, the performance of every outward duty, and the exercise of every inward grace, particularly it designs prayer; and whoever are concerned in one, or the other...