Most Relevant Verses
As for you, be calm and cool and steady, accept and suffer unflinchingly every hardship, do the work of an evangelist, fully perform all the duties of your ministry.
Have not I commanded you? Be strong, vigorous, and very courageous. Be not afraid, neither be dismayed, for the Lord your God is with you wherever you go.
And the Lord said to Joshua, Fear not nor be dismayed. Take all the men of war with you, and arise, go up to Ai; see, I have given into your hand the king of Ai, his people, his city, and his land.
And beware, lest your heart faint and you be afraid at the report (rumor) heard in the land; for in one year shall one report come and in another year another report, and violence shall be in the land, ruler against ruler.
Also [Jesus] told them a parable to the effect that they ought always to pray and not to turn coward (faint, lose heart, and give up).
Do not let your hearts be troubled (distressed, agitated). You believe in and adhere to and trust in and rely on God; believe in and adhere to and trust in and rely also on Me.
And let us not lose heart and grow weary and faint in acting nobly and doing right, for in due time and at the appointed season we shall reap, if we do not loosen and relax our courage and faint.