When you're weak, God is strong.
Be strong and courageous. Do not be frightened and do not be dismayed for the Lord your God is with you wherever you go. - Joshua 1:9
The Lord is my strength and my shield; my heart trusts in him, and he helps me. My heart leaps for joy, and with my song I praise him. - Psalm 28:7
She is clothed with strength and dignity; she can laugh at the days to come. - Proverbs 31:25