2 Timothy 2:1
Do you then, my son, strengthen you heart in the grace which is in Christ Jesus.
Ephesians 6:10
Finally, my brothers, let your hearts be strengthened in the Lord, and in the power of his might.
2 Timothy 1:2
To Timothy, my beloved child; Grace mercy, and peace to you from God our Father and Christ Jesus our Lord.
2 Corinthians 12:9-10
but he has answered me. "My grace is sufficient for you; it is in weakness that my power is perfected."
1 Corinthians 16:13
Be watchful, stand firm in the faith, be manly, be strong.
Philippians 4:13
I am strong for everything in Him who gives me strength.
1 Timothy 1:2
to Timothy, my true son in the faith; Grace, mercy and peace from God, our Father, and the Lord Jesus Christ.
1 Timothy 1:18
This charge then, I am laying upon you, Timothy, my son, according to the predictions formerly made concerning you. Fight the good fight in the spirit of these predictions,
2 Timothy 1:7
For God has not given us a spirit of cowardice, but a spirit of power and of love and of self-control.
2 Peter 3:18
But grow continually in the grace and knowledge of our Lord and Saviour Jesus Christ. To Him be the glory both now and unto the Day of Eternity, Amen.