The Return of Christ

Many Christians have given up waiting and hoping for Jesus to return, or they believe the Bible never says he would return. Does it really matter? Can we know when the time is near?

Scripture references---
http://bible.fether.net/index.php?pager=rl
Acts 1:9-11,, 1 Cor. 15:50-52,, 1 Thes. 4:15-18,, 2 Thes. 2:1-12,, 2 Tim. 1:10,, 2 Tim. 4:1,, Tts 2:13,, 2 Peter 3:3-13,, Rev. 1:7,, Rev. 3:10-11,, Rev. 19:11-16,, Rev. 22:7,12, 20