'Stand Fast' in the Bible

My lovingkindness will I keep for him for evermore; And my covenant shall stand fast with him.

Watch ye, stand fast in the faith, quit you like men, be strong.

Not that we have lordship over your faith, but are helpers of your joy: for in faith ye stand fast.

For freedom did Christ set us free: stand fast therefore, and be not entangled again in a yoke of bondage.

Only let your manner of life be worthy of the gospel of Christ: that, whether I come and see you and be absent, I may hear of your state, that ye stand fast in one spirit, with one soul striving for the faith of the gospel;

Wherefore, my brethren beloved and longed for, my joy and crown, so stand fast in the Lord, my beloved.

for now we live, if ye stand fast in the Lord.

So then, brethren, stand fast, and hold the traditions which ye were taught, whether by word, or by epistle of ours.