'Purify' in the Bible
Then Jacob said to his household, and to all who were with him, "Put away the foreign gods that are among you, purify yourselves, change your garments.
the same shall purify himself with water on the third day, and on the seventh day he shall be clean: but if he doesn't purify himself the third day, then the seventh day he shall not be clean.
Whoever touches a dead person, the body of a man who has died, and doesn't purify himself, defiles the tabernacle of Yahweh; and that soul shall be cut off from Israel: because the water for impurity was not sprinkled on him, he shall be unclean; his uncleanness is yet on him.
and the clean person shall sprinkle on the unclean on the third day, and on the seventh day: and on the seventh day he shall purify him; and he shall wash his clothes, and bathe himself in water, and shall be clean at evening.
But the man who shall be unclean, and shall not purify himself, that soul shall be cut off from the midst of the assembly, because he has defiled the sanctuary of Yahweh: the water for impurity has not been sprinkled on him; he is unclean.
"Encamp outside of the camp seven days: whoever has killed any person, and whoever has touched any slain, purify yourselves on the third day and on the seventh day, you and your captives.
As to every garment, and all that is made of skin, and all work of goats' [hair], and all things made of wood, you shall purify yourselves."
I commanded the Levites that they should purify themselves, and that they should come and keep the gates, to sanctify the Sabbath day. Remember to me, my God, this also, and spare me according to the greatness of your loving kindness.
Purify me with hyssop, and I will be clean. Wash me, and I will be whiter than snow.
"Those who sanctify themselves and purify themselves [to go] to the gardens, behind one in the midst, eating pig's flesh, and the abomination, and the mouse, they shall come to an end together," says Yahweh.
Seven days shall they make atonement for the altar and purify it; so shall they consecrate it.
Some of those who are wise shall fall, to refine them, and to purify, and to make them white, even to the time of the end; because it is yet for the time appointed.
Many shall purify themselves, and make themselves white, and be refined; but the wicked shall do wickedly; and none of the wicked shall understand; but those who are wise shall understand.
For then I will purify the lips of the peoples, that they may all call on the name of Yahweh, to serve him shoulder to shoulder.
and he will sit as a refiner and purifier of silver, and he will purify the sons of Levi, and refine them as gold and silver; and they shall offer to Yahweh offerings in righteousness.
Now the Passover of the Jews was at hand. Many went up from the country to Jerusalem before the Passover, to purify themselves.
Take them, and purify yourself with them, and pay their expenses for them, that they may shave their heads. Then all will know that there is no truth in the things that they have been informed about you, but that you yourself also walk keeping the law.
who gave himself for us, that he might redeem us from all iniquity, and purify for himself a people for his own possession, zealous for good works.
Draw near to God, and he will draw near to you. Cleanse your hands, you sinners; and purify your hearts, you double-minded.