The first family is sanctioned by God himself. The second family is based upon “law”. Following the divorce and break-up of the first family, the second wife becomes a “wife-in-law”. In early family law, Sarah, who was Abraham’s half-sister, was referred to as their father’s “daughter-in-law” rather than “daughter”; while Abraham, Sarah’s half-brother, was referred to as his “son” (Genesis 11: 31, 20:12). In our current legal system, we have similar, but different terminology. Now “daughter-in-law” refers to our son’s wife and not a half-sister with his father’s second “wife”, “son-in-law” refers to our daughter’s husband, “mother-in-law”, and “father-in-law”. Each of these first family members is replaceable under “legal family law”. This is the reason “in-law” is used – to remind us that this family is based upon “law” and can be broken with “law”. None of these titles mean anything under God’s plan because all are permanent members of the family and they should be referred to as, “our son’s wife”, “our daughter’s husband”, “our son’s or daughter’s mother”, and “our son’s or daughter’s father”. Under God’s plan, it is the second family that can be removed from the family if their members try to break up the first family! Jesus said to let no one separate the first family. Hagar is our example of a second wife and Ishmael was a son that wanted to replace the firstborn son of the first family, Isaac. (Genesis 16:3, 21:9-10, 25:5) #Save the first family!