The Gospel for Pentecost Sunday was from John 14:23-31. What did Jesus mean when, in verse 28, he says “for the Father is greater than I”?
It is an important question to address. In fact Cardinal Newman points out in his “The Arians of the fourth century” that this verse was often used by the Arians to attempt to show that the Son was not consubstantial with the Father. The Haydock's Catholic Bible Commentary (1859) concisely demonstrates the orthodox interpretation of this verse and also refutes the false claims of the Arians:
image from the 'Public domain' via wikimedia commons. Pentecost. Jean II Restout. 1732