One example of an encouraging quote for Christians is "Be not dismayed, for I am your God; I will strengthen you, I will help you, I will uphold you with my righteous right hand." This is a quote from Isaiah 42:10.
Christians commonly use Bible verses as encouragement. Another encouraging Bible verse is "Cast your burden on the Lord, and he will sustain you; he will never permit the righteous to be moved." This is from Psalm 55:22. These quotes help remind Christians that God is looking out for them and that they can rely upon God for strength and courage.