Mark this also, if God send thee to the sea, and promise to go with thee, and to bring thee safe to land, he will raise up a tempest against thee, to prove whether thou wilt abide by his word, and that thou mayest feel thy faith, and perceive his goodness. For if it were always fair weather, and thou never brought into such jeopardy, whence his mercy only delivered thee, thy faith should be but a presumption, and thou shouldest be ever unthankful to God and merciless unto thy neighbor.

The Obedience of A Christian Man (1528)