Father and Son and Holy Spirit can be attained only through Their Names.
Do not investigate Their Hypostases,
Meditate only on Their Names.
If you will start to search out the Hypostasis, you will perish;
But if you believe in the Name, you will live. May the Name of the Father be a boundary for you: do not cross it and do not search out His Hypostasis. May the Name of the Son be a wall for you: do not try to overcome it and do not search out His Begetting. May the Name of the Spirit be a hedge for you: do not enter therein to investigate Him.
St. Ephraim the Syrian, Homily on Faith, 4, 129-140.
