Speaking of unconfessed sinning, it’s interesting that Jesus administered communion to Judas after marking him out as one who would betray Him. ..True, but only requirement to take communion seems to be saved and not walking in knowing unconfessed sinning!
John 13:21,26-27 CSB
[21] When Jesus had said this, he was troubled in his spirit and testified, "Truly I tell you, one of you will betray me." [26] Jesus replied, "He's the one I give the piece of bread to after I have dipped it." When he had dipped the bread, he gave it to Judas, Simon Iscariot's son. [27] After Judas ate the piece of bread, Satan entered him. So Jesus told him, "What you're doing, do quickly."