Deacons are servants. They serve Christ by serving His church. Their task is to enable God’s family to receive what He wants to give them, and give to others what God wants to pass on in blessing. In one sense they are trustees who enable divine resources to be available where they can be best used. Faithfulness is a primary qualification for this role. Polygamy, either in parallel (where a man may have intimate relationships with more than one woman at the same time), or in series (where a sequence of women find the favour of one man), is not a biblical model of family life.