By the which will we are sanctified through the offering of the body of Jesus Christ once. And every priest standeth daily ministering and offering oftentimes the same sacrifices, which can never take away sins: but this Man, after He had offered one sacrifice for sins for ever, sat down on the right hand of God; from henceforth expecting till His enemies be made His footstool.
For by one offering He hath perfected for ever them that are sanctified, the Holy Ghost also is a witness to us: for after that He had said before, ‘This is the covenant that I will make with them after those days, saith the Lord, I will put My laws into their hearts, and in their minds will I write them; and their sins and iniquities will I remember no more.’
Now where remission of these is, there is no more offering for sin.”   Hebrews 10:10-18  (KJB)

REFERENCE: Hebrews 7 – 10; Acts 20:32; Romans 11:27; 15:16; John 17:17; Jeremiah 31:31-37; Ezekiel 36:25-28