The Scripture moreover testifies that believers in this life have to
struggle with various carnal doubts, and that under grievous temptations they
do not always feel this full assurance of faith and certainty of persevering.
But God, who is the Father of all consolation, does not suffer them to be
tempted above that they are able, but will with the temptation make also the
way of escape, that they may be able to endure it (1 Cor. 10:13), and by the Holy Spirit again inspires them
with the comfortable assurance of persevering.