Athlete
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2 Timothy 2:5
Likewise, a competitor does not receive the crown unless he competes according to the rules.
2 Timothy 4:7
I have fought the good fight, I have finished the race, I have kept the faith.
Isaiah 40:29–31
He gives power to the faint and increases the strength of the weak. / Even youths grow tired and weary, and young men stumble and fall. / But those who wait upon the LORD will renew their strength; they will mount up with wings like eagles; they will run and not grow weary, they will walk and not faint.
Proverbs 27:17
As iron sharpens iron, so one man sharpens another.
Psalm 62:2
He alone is my rock and my salvation. He is my fortress; I will never be shaken.