While some may be WORTHY of heaven because they believed in Christ and were purchased by His blood - not all are WORTHY of Christ. Because, they did not deny themselves, pick up their crosses to follow Him - their Savior and... Lord. They did not obey His commands, listen to His warnings or keep themselves unspotted from the world and remain faithful to the end.

It is the Bride of Christ who is worthy to wear the fine white linen, receive the Lord's new name, be announced to The Father and angels, be seated with Him on His throne - Because... she is faithful, prepared and ready when He comes for her whether by death or the rapture.
 
Only God sees and knows our hearts and who is actually the Bride. The bride comes out of the Body of Christ (the Church) just as Eve came out from the body of Adam.

"Watch you therefore, and pray always, that you "may be" accounted worthy to escape all these things that shall come to pass, and to stand before the Son of man." Luke 21:36