In His grace, God freely gives salvation to those who believe in Jesus. We cannot earn this gift, nor do we deserve it. Our Father does notice our good works, though. And He promises to reward us according to what we have done for Him.
True service occurs when we allow the Lord to work through us for His glory and honor. True ministry occurs when divine resources meet human need through loving channels.
Revelation 22:12 encourages us, "Behold, I am coming quickly, and My reward is with Me, to render to every man according to what he has done." Whether large or small, all service done in Jesus' name will be blessed. We must be careful, though, that our actions are for Christ's glory. If motives are self-serving, the only benefit we receive is the praise (if any) that we hear from people in this life. And we know that men's approval is not satisfying or lasting.
While some rewards will be given in heaven, other blessings can be experienced now. For example, we know great joy when we allow God to bless others through us. And there is deep satisfaction in realizing that we are pleasing Christ. In addition,there's a profound sense of fulfillment when we lead a person to Jesus and teach him how to walk by faith.
Serving others is both a great benefit and a responsibility for Christians. We should prayerfully consider our motives to make sure that our goal is to glorify Christ. Only then will we receive God's full blessings--rewards given not only in eternity but on earth as well.