Answer: We should rejoice in persecution, because great is our reward in heaven, (verse 12).
MORE INFORMATION AND/OR OTHER SCRIPTURE REFERENCES:
Psalm 62:11-12: "One thing God has spoken, two things have I heard: that You, O God, are strong, and that You, O Lord, are loving. Surely You will reward each person according to what he has done."
Jeremiah 17:10: [God said,] "I the Lord search the heart and examine the mind, to reward a man according to his conduct, according to what his deeds deserve."
Colossians 3:22-24: "Slaves, obey your earthly masters in everything; and do it, not only when their eye is on you and to win their favor, but with sincerity of heart and reverence for the Lord. Whatever you do, work at it with all your heart, as working for the Lord, not for men, since you know that you will receive an inheritance from the Lord as a reward. It is the Lord Christ you are serving."
2 Timothy 4:6-8: [Paul said,] "For I am already being poured out like a drink offering, and the time has come for my departure. I have fought the good fight, I have finished the race, I have kept the faith. Now there is in store for me the crown of righteousness, which the Lord, the Righteous Judge, will award to me on that day--and not only to me, but also to all who have longed for His appearing."
Hebrews 11:24-26: "By faith Moses, when he had grown up, refused to be known as the son of Pharaoh's daughter. He chose to be mistreated along with the people of God rather than to enjoy the pleasures of sin for a short time. He regarded disgrace for the sake of Christ as of greater value than the treasures of Egypt, because he was looking ahead to his reward."
James 1:12: "Blessed is the man who perseveres under trial, because when he has stood the test, he will receive the crown of life that God has promised to those who love Him."
Revelation 2:10: [Jesus said,] "Do not be afraid of what you are about to suffer. I tell you, the devil will put some of you in prison to test you, and you will suffer persecution for ten days. Be faithful, even to the point of death, and I will give you the crown of life."
Revelation 22:12-13: "Behold, I am coming soon! My reward is with Me, and I will give to everyone according to what he has done. I am the Alpha and the Omega, the First and the Last, the Beginning and the End."