2 Corinthians 6:4-5  . . . commending ourselves, as servants of God, in great endurance, in afflictions, in hardships, in distresses, in beatings, in imprisonments, in riots, in labors, in watchings, in fastings

1 Corinthians 10:12 Therefore let him who thinks he stands be careful that he doesn’t fall.

2 Corinthians 13:5 Examine your own selves, whether you are in the faith. Test your own selves. Or don’t you know about your own selves, that Jesus Christ is in you?—unless indeed you are disqualified.