Instruction manuals for households were rather common to the ancient Greeks as husbands and fathers were primarily addressed and given principles on running their households. What is revolutionary about the Bible is that wives, children and slaves were included in these instructions. These groups were generally never addressed since they were understood to possess a subservient position to the husbands and fathers in the home. The fact that the Bible addresses them first shows the value and dignity they have before God. The instructions given to parents and children, slaves and masters are based on the general principle of mutual submission (Ephesians 5:21). Children serve their parents by obeying and honouring their parents. Parents serve their children by not provoking their children to anger and by instructing them in the ways of the Lord. Slaves and masters serve one another by understanding that all their work is to be done as unto the Lord, treating one another with dignity and respect.