The seventh commandment protects family relationships from a sexual standpoint. Sexual sins are highly destructive, and God wants His children to be pure.
The evil of the mixed marriages in the Book of Malachi was a spiritual defilement, yoking spiritual and worldly elements, intrinsically unequal.
Malachi assures the people of Judah that if they repent, God's favor will resume, but if they continue defiling the Covenant, a day of reckoning will come.
The world is so full of lying and other forms of deceit that 'bearing false witness' has become a way of life for the vast majority of humanity.
Those who have made a covenant with God can be corrupted unless they make a concerted effort to know God, realizing He has the right to do as He pleases.
God ordained marriage and the family for the physical and spiritual growth and nurturing of children. God's goal is a Family composed of mature spirit beings.
We cannot measure how much evil the tongue has perpetrated, for falsehoods disguised as truth have destroyed reputations and even nations.
In Revelation 21:8, Christ lists three spiritual conditions and four behaviors, all of which He links to deceit and which will lead to the Lake of Fire.
When we consider the awesome contrast of what we were before God called us and what we are now, we cannot allow ourselves to commit spiritual fornication.
Those who follow Christ are the true Israel, the Elect, and the Chosen, called by God to precede unfaithful physical Israel in the salvation process.