From BiblePortal Wikipedia

Rewards [1]

Future rewards for the Christian are spoken of frequently in the N.T. They are open to all. A cup of cold water given to a disciple because he belongs to Christ, shall not lose its reward,  Mark 9:41; and the Lord Jesus said, "Behold, I come quickly; and my reward is with me, to give every man according as his work shall be."  Revelation 22:12 . He who labours in the Lord's service, if his work abides, will receive his reward.  1 Corinthians 3:8,14 : cf.  2 John 8 . At the same time the Lord will reward the doer of evil with its fitting recompense.  2 Samuel 3:39 .

Rewards are not held out as a motive before the soul: each should be able to say, The love of Christ constraineth me.  2 Corinthians 5:14 . But they are added, in the aboundings of love and grace, as an encouragement amid the dangers and difficulties of the way. Believers are warned that they be not beguiled of their reward.  Colossians 2:18 : cf.  Revelation 3:11 .