They must keep hold of the deep truths of the faith with a clear conscience.
holding on to faith and a good conscience, which some have rejected and so have suffered shipwreck with regard to the faith.
The goal of this command is love, which comes from a pure heart and a good conscience and a sincere faith.
Beyond all question, the mystery from which true godliness springs is great: He appeared in the flesh, was vindicated by the Spirit, was seen by angels, was preached among the nations, was believed on in the world, was taken up in glory.