Finally, my brothers, be strong in the Lord and in the power of His might.
He trains my hands for battle; my arms can bend a bow of bronze.
1 Timothy 4:12
Don’t let anyone look down on you because you are young, but set an example for the believers in speech, in conduct, in love, in faith and in purity.
Who among you fears the Lord and obeys the word of his servant? Let the one who walks in the dark, who has no light, trust in the name of the Lord and rely on their God.
Be strong and courageous. Do not be afraid or terrified because of them, for the Lord your God goes with you; he will never leave you nor forsake you.
He gives strength to the weary and increases the power of the weak. Even youths grow tired and weary, and young men stumble and fall; but those who hope in the Lord will renew their strength. They will soar on wings like eagles; they will run and not grow weary, they will walk and not be faint.
Romans 5:18, 19 (The Message)
Here it is in a nutshell: Just as one person did it wrong and got us in all this trouble with sin and death, another person did it right and got us out of it. But more than just getting us out of trouble, he got us into life! One man said no to God and put many people in the wrong; one man said yes to God and put many in the right.
In their hearts humans plan their course, but the Lord establishes their steps.
James 1:2, 3
Consider it pure joy, my brothers, whenever you face trials of many kinds because you know that the testing of your faith develops perseverance.
But if serving the Lord seems undesirable to you, then choose for yourselves this day whom you will serve, whether the gods your ancestors served beyond the Euphrates, or the gods of the Amorites, in whose land you are living. But as for me and my household, we will serve the Lord.