There is no evidence to point to any spiritual significance to the fact that seven sins are mentioned, and not six or eight. Neither are the sins mentioned of any special significance. These are likely the sins that were prominent in Malachi’s day. The fact that he lists as many sins as he does points to Israel’s state of deformation, and how worthy Israel is to be punished by God when He comes. The sins that are mentioned are sins against both the first and the second tables of God’s law, that is, sins committed against God and against one’s neighbour. Some of the sins are abominations in the Lord’s sight; that is, they are detestable, odious.
5 Je m'approcherai de vous pour le jugement, Et je me hâterai de témoigner contre les enchanteurs et les adultères, Contre ceux qui jurent faussement, Contre ceux qui retiennent le salaire du mercenaire, Qui oppriment la veuve et l'orphelin, Qui font tort à l'étranger, et ne me craignent pas, Dit l'Eternel des armées.