In other words, "Therefore, if you bring your gift to the altar and there remember that your brother or sister has something against you, leave your gift at the altar and go. First make things right with your brother or sister and then come back and offer your gift." (Matt 5:23 CEB).
So, to answer the question:
Who can ascend the Lord’s mountain?Holiness matters...and I'm talking heart holiness, not rule-based pseudo-holiness. You know, the kind that is imparted by the Holy Spirit.
Who can stand in his holy sanctuary?
Only the one with clean hands and a pure heart;
the one who hasn’t made false promises,
the one who hasn’t sworn dishonestly.
That kind of person receives blessings from the Lord
and righteousness from the God who saves.