'Without Sin' in the Bible

And while they continued asking him, he lifted himself up; And said unto them, "Let him that is among you without sin, cast the first stone at her."

For we have not a high priest, which cannot have compassion on our infirmities: but was in all points tempted, as we are: but yet without sin.

even so Christ was once offered to take away the sins of many, and unto them that look for him, shall he appear again, without sin, unto their salvation.