John 16:3
“And these things will they do, because they have not known the Father, nor Me.”
“It is sufficient for your comfort that you endure these things for My sake, and the Father's.” Here He reminds them of the blessedness of which He spoke at the beginning, “Blessed are you, when men shall revile you, and persecute you, and shall say all manner of evil against you falsely, for My sake. Rejoice, and be exceeding glad; for great is your reward in heaven.”
Source: Homilies on the Gospel of John (New Advent)