Philippians 4:4-5

4 Rejoice in the Lord always. Again I will say, rejoice! 5 Let your gentleness be known to all men. The Lord is at hand.

Philippians 2:14

14 Do everything without complaining or arguing, (NIV)

Philippians 4:13

13 I can do all things through Christ who strengthens me. (NKJ)

John 16:33

33 These things I have spoken to you, that in Me you may have peace. In the world you will have tribulation; but be of good cheer, I have overcome the world." (NKJ)