Just as the child of the flesh persecuted the child of promise, the spiritual children of God can expect persecution from those living according to the flesh.
The husband is charged to exercise love to his wife, actually a more demanding task than submitting, carrying more instructions than the command to submit.
As Israel comes to itself, God will gently re-gather His people from their exile, an event which will make reconciliation available to the entire world.
Envy is a work of the flesh, involving coveting. A significant example of envy is found in the relationship of the two wives of Elkanah, Hannah and Peninnah.