The purpose of spiritual gifts is to glorify Jesus by testifying of Him and building up His church until He returns. A major part of this is accomplished by using our gifts to serve in love, and by bearing much fruit that lasts. See Romans 11:36, Colossians 1:16, Revelation 4:11, Ephesians 4:11-13, 1 Corinthians 1:7; 1 Peter 4:10; John 16:13-14 and John 15:8.