"Whatever you do, do your work heartily, as for the Lord rather than for men."
Colossians 3:23

"Whatever your hand finds to do, do it with all your might."
Ecclesiastes 9:10

"Therefore, since we have so great a cloud of witnesses surrounding us, let us also lay aside every encumbrance and the sin which so easily entangles us, and let us run with endurance the race that is set before us, fixing our eyes on Jesus, the author and perfecter of faith, who for the joy set before Him endured the cross, despising the shame, and has sat down at the right hand of the throne of God.

"For consider Him who has endured such hostility by sinners against Himself, so that you will not grow weary and lose heart."
Hebrews 12:1-3

"I do not regard myself as having laid hold of it yet; but one thing I do: forgetting what lies behind and reaching forward to what lies ahead, I press on toward the goal for the prize of the upward call of God in Christ Jesus."
Philippians 3:13-14

"For it is God who is at work in you, both to will and to work for His good pleasure."
Philippians 2:13

"I can do all things through Him who strengthens me."
Philippians 4:13

"Go therefore and make disciples of all the nations, baptizing them in the name of the Father and the Son and the Holy Spirit, teaching them to observe all that I commanded you; and lo, I am with you always, even to the end of the age."
Matthew 28:19-20

"Be strong and courageous, do not be afraid or tremble at them, for the LORD your God is the one who goes with you. He will not fail you or forsake you."
Deuteronomy 31:6

"He gives strength to the weary, and to him who lacks might He increases power. Though youths grow weary and tired, and vigorous young men stumble badly, yet those who wait for the LORD will gain new strength; they will mount up with wings like eagles, they will run and not get tired, they will walk and not become weary."
Isaiah 40:29-31

"Whatever you ask in My name, that will I do, so that the Father may be glorified in the Son. If you ask Me anything in My name, I will do it."
John 14:13-14

"Do you not know that those who run in a race all run, but only one receives the prize? Run in such a way that you may win. Everyone who competes in the games exercises self-control in all things. They then do it to receive a perishable wreath, but we an imperishable.

"Therefore I run in such a way, as not without aim; I box in such a way, as not beating the air; but I discipline my body and make it my slave, so that, after I have preached to others, I myself will not be disqualified."
1 Corinthians 9:24-27

"Do not seek what you will eat and what you will drink, and do not keep worrying. For all these things the nations of the world eagerly seek; but your Father knows that you need these things. Seek His kingdom, and these things will be added to you."
Luke 12:29-30

"For even when we were with you, we used to give you this order: if anyone is not willing to work, then he is not to eat, either. For we hear that some among you are leading an undisciplined life, doing no work at all, but acting like busybodies.

"Now such persons we command and exhort in the Lord Jesus Christ to work in quiet fashion and eat their own bread. As for you, brethren, do not grow weary of doing good."
2 Thessalonians 3:10-13