20 If anyone who is unclean does not purify himself from sin, then that soul will be cut off from the midst of the assembly, for the sanctuary of Yahweh has he defiled; water of impurity was not sprinkled on him, he is unclean.
Numbers 19:20 Cross References - CLV
Genesis 17:14
14 And the uncircumcised male, the flesh of whose foreskin was not circumcised in the eighth day, that soul also shall be cut off from his people. My covenant he annuls.
Numbers 15:30
30 Yet the soul who is doing anything with a high hand, from the native and from the sojourner, he is taunting Yahweh; that soul will be cut off from among his people,
Numbers 19:13
13 Anyone touching a dead body, a human soul who died, and who does not purify himself from sin defiles the tabernacle of Yahweh; that soul will be cut off from Israel, for water of impurity was not sprinkled on him. He shall be unclean; his uncleanness will still be in him.
Mark 16:16
16 He who believes and is baptized shall be saved, yet he who disbelieves shall be condemned."
Acts 13:39-41
39 and from all from which you could not be justified in the law of Moses, in this One everyone who is believing is being justified."
40 Beware then, that that which has been declared in the prophets may not be coming on you:"
41 Perceive, you despisers, and marvel, and disappear! for a work am I working in your days - a work which you should by no means be believing if anyone should be detailing it to you."
Romans 2:4-5
4 Or are you despising the riches of His kindness and forbearance and patience, being ignorant that the kindness of God is leading you to repentance?
5 Yet, in accord with your hardness and unrepentant heart you are hoarding for yourself indignation in the day of indignation and revelation of the just judgment of God,
2 Peter 3:14
14 Wherefore, beloved, hoping for these things, endeavor to be found by Him in peace, unspotted and flawless."
Revelation 22:11
11 Let the injurer injure still; and let the filthy one be filthy still; and let the just one do righteousness still; and let the holy one be hallowed still."