Plotinus in Ambrose’s Theology of Ascent, Gerald Boersma:

Participatory metaphysics rejects a real relation on the part of God to the creature; he does not participate, but is participated in. Plotinus writes that the One “provides for all and remains by itself and gives to all but receives nothing into itself.”14 Similarly, Ambrose writes, “This it is that supplies to all things their being; itself remaining in itself, it gives to others but receives nothing into itself from others.”15 The phrasing of this quotation is remarkably similar: The One gives to all (sumministrat uniuersis substantiam/χορηγεῖ μὲν ἅπασιν) while remaining bound within his own being (ipsum autem manens in semet/ἐφ´ ἑαυτοῦ δὲ μένον δίδωσι). The One gives but does not receive (suscipit/δέχεταί).