Peccability meaning Christ could have sinned, but did not. Impeccability meaning Christ could not have sinned. I will give a scripture as a reference, but there may be others you would like to add. Please explain this scripture: Hebrews 4:14-15 (ESV) 14 Since then we have a great high priest who has passed through the heavens, Jesus, the Son of God, let us hold fast our confession. 15 For we do not have a high priest who is unable to sympathize with our weaknesses, but one who in every respect has been tempted as we are, yet without sin. How could Jesus be tempted in all points, yet could not sin? I know what I believe, but would like to hear what others say. By the way, I can't take credit for the question because it came on a little blip after I listened to R.C. Sprouls this morning.