'Matter' in the Bible

But those who died in the plague were 14,700, besides those who died because of Korah.

for they harass you with their tricks, the tricks with which they have deceived you in the matter [of the Baal] of Peor, and in the matter of Cozbi, the daughter of the leader of Midian, their sister, who was killed on the day of the plague because [of the Baal] of Peor.”

But if her husband says nothing to her [concerning the matter] from day to day, then he confirms all her vows or all her pledges which are on her. He has confirmed them because he said nothing to her on the day he heard them.

Look, these [are the women who] caused the Israelites, by the counsel of Balaam, to trespass against the Lord in the matter of Peor, and so a plague came among the congregation of the Lord.

and the land [west of the Jordan] is subdued before the Lord, then afterward you shall return and be blameless [in this matter] before the Lord and before Israel, and this land [east of the Jordan] shall be yours as a possession before the Lord.