7 O you virgins who have betrothed yourselves to Christ, when one of the monks shall say to one of you, “I will live with you and you minister to me,” thus shall you say unto him:— “To a royal husband am I betrothed, and Him do I serve; and if I leave His service and serve you, my betrothed will be angry with me, and will write me a letter of divorce, and will send me away from His house; and while you seek to be honoured by me, and I to be honoured by you, take heed lest hurt come upon me and you. Take not fire into your bosom, lest it burn your garments; but be in honour alone, and I also alone will abide in my honour. And as concerning these things which the Bridegroom has prepared for the eternity of his marriage feast, make a wedding-gift and prepare yourself to meet Him. And as for me, I will make me ready oil, that I may enter in with the wise virgins and may not be kept outside the door with the foolish virgins.”
Source: Demonstrations (New Advent)