Keep always in mind the rule of faith which I profess and by which I bear witness that the Father and the Son and the Spirit are inseparable from each other, and then you will understand what is meant by it. Observe now that I say the Father is other [distinct], the Son is other, and the Spirit is other. This statement is wrongly understood by every uneducated or perversely disposed individual, as if it meant diversity and implied by that diversity a separation of Father, Son, and Holy Spirit
TertullianLet women paint their eyes with tints of chastity, insert into their ears the word of God, tie the yoke of Christ around their necks, and adorn their whole persons with the silk of sanctity and the damask of devotion.
Tertullian