The Greek verb diatasso means to arrange, appoint, command, or give detailed orders. The dia prefix intensifies the thoroughness of the arrangement — comprehensive ordering or directing.
Paul uses diatasso to describe his own apostolic authority in ordering churches (1 Cor 7:17; 11:34; 16:1) and to speak of the law being 'ordained through angels' (Gal 3:19). Moses obeyed the God who 'directed him' (Acts 7:44). The word carries the weight of divine arrangement — God's ordering of creation, law, and church life is not haphazard but thoroughly arranged. Order in the Church reflects the character of God.