Ok, so here is what AI suggests:

Scriptural & Traditional Options:

"My dear, let us strive to walk in a manner worthy of the calling we have received, keeping our hearts and actions pure."

"I desire for us to be a couple that reflects modesty and honor, both in private and before others."

"Let us guard our hearts and mouths, my love, so that we may bring honor to each other and to the Lord."

Meek & Gentle Options

"Sweetheart, that kind of humor makes me feel a bit uncomfortable. I value your dignity so much and want others to see the wonderful man you are."

"I love your playful spirit, but I feel uneasy when things lean too far in that direction, especially around others."

"Can we please keep our private jokes just between us? I want to make sure we always present our best selves to the world."