'Stand Firm' in the Bible

Watch, stand firm in the faith, play the man, be strong!

So then, my brothers, for whom I cherish love and longing, my joy and crown, this is how you must stand firm in the Lord, O my beloved.

Epaphras, who is one of yourselves, salutes you ??a servant of Christ Jesus who is always earnest in prayer for you, that you may stand firm like mature and convinced Christians, whatever be the will of God for you.

It is life to me now, if you stand firm in the Lord.

Well then, brothers, stand firm and hold to the rules which you have learned from us orally or by letter.