Bible Verses About Steadfastness: Commanded

So then, my brethren, beloved and longed for, my joy and crown, so stand ye in the Lord, beloved.

so, then, brethren, stand ye fast, and hold the deliverances that ye were taught, whether through word, whether through our letter;

and let him ask in faith, nothing doubting, for he who is doubting hath been like a wave of the sea, driven by wind and tossed,

for let not that man suppose that he shall receive anything from the Lord--

a two-souled man is unstable in all his ways.