2 Corinthians 6:1 New King James Version (NKJV)
Marks of the Ministry
6 We then, as workers together with Him also plead with you not to receive the grace of God in vain.
Philippians 2:12 New King James Version (NKJV)
12 Therefore, my beloved, as you have always obeyed, not as in my presence only, but now much more in my absence, work out your own salvation with fear and trembling;