Bible Verses About Steadfastness: Commanded

So, my brothers, whom I love and long for, my joy and my crown, my dear friends, keep standing firm in union with the Lord.

Therefore, brothers, stand firm; and hold to the traditions you were taught by us, whether we spoke them or wrote them in a letter.

But let him ask in trust, doubting nothing; for the doubter is like a wave in the sea being tossed and driven by the wind.

Indeed that person should not think that he will receive anything from the Lord,

because he is double-minded, unstable in all his ways.