1 Peter 1:18-19
Forasmuch as ye know that ye were not redeemed with corruptible things, [as] silver and gold, from your vain conversation [received] by tradition from your fathers;
But with the PRECIOUS BLOOD OF CHRIST, as of a lamb without blemish and without spot:

Revelation 12:11
And they overcame him by the BLOOD OF THE LAMB, and by the word of their testimony; and they loved not their lives unto the death.

Hebrews 9:12
Neither by the blood of goats and calves, but by his OWN BLOOD he entered in once into the holy place, having obtained eternal redemption for us.

Ephesians 2:13
But now in Christ Jesus ye who sometimes were far off are made nigh by the BLOOD OF CHRIST.

Hebrews 9:14
How much more shall the BLOOD OF CHRIST, who through the eternal Spirit offered himself without spot to God, purge your conscience from dead works to serve the living God?

Revelation 1:5
And from Jesus Christ, who is the faithful witness, and the first begotten of the dead, and the prince of the kings of the earth. Unto him that loved us, and washed us from our sins in HIS OWN BLOOD,

REPENTANCE OF SIN IS GOOD, BUT NOT GOOD ENOUGH TO GAIN ENTRANCE INTO HEAVEN.  IT IS THE BLOOD OF JESUS CHRIST THAT TAKES AWAY SIN AND GRANTS ACCESS TO LIFE ETERNAL.