16 But you are anxious, it may be, and sayest, I was baptized without; I fear lest therefore I am guilty, in that I was baptized without. Already you begin to know what you have to bewail. You say truly that you are guilty, not because of your re ceiving, but because of your receiving without. Keep then what you have received; amend your receiving it without. You have received what is the dove's apart from the dove. Here are two things said to you: You have received, and, Apart from the dove you have received. In that you have received, I approve; that you have received without, I disapprove. Keep then what you have received, it is not changed, but recognized: it is the mark of my king, I will not profane it. I will correct the deserter, not change the mark.
Source: Tractates on the Gospel of John (New Advent)