1 Corinthians 15:33-34, 58
1 Corinthians 15:33-34 NASB1995
Do not be deceived: “Bad company corrupts good morals.” Become sober-minded as you ought, and stop sinning; for some have no knowledge of God. I speak this to your shame.
1 Corinthians 15:58 NASB1995
Therefore, my beloved brethren, be steadfast, immovable, always abounding in the work of the Lord, knowing that your toil is not in vain in the Lord.