Happiness of Saints in This Life is Derived From: Suffering for Christ
Source: TTT
2 Corinthians 12:10
That is why, for the sake of Christ, I delight in weaknesses, in insults, in hardships, in persecutions, in difficulties. For when I am weak, then I am strong.
1 Peter 3:14
But even if you should suffer for what is right, you are blessed. “Do not fear what they fear; do not be shaken.”
1 Peter 4:13, 14
But rejoice that you share in the sufferings of Christ, so that you may be overjoyed at the revelation of His glory. / If you are insulted for the name of Christ, you are blessed, because the Spirit of glory and of God rests on you.