Incruéntum Fílii tui sacrifícium offeréntes, te supplíciter exorámus, omnípotens Deus: ut, sicut passiónis eius iugis meditátio intelléctum sancti Bonaventúrae Pontíficis erudívit; ita mentes et corda nostra igne caritátis inflámmet. Per eúndem Dóminum.
I've been thinking this morning about how to make an artful translation, but I'm not yet satisfied with my ideas. If I come up with something later, I'll update the post. If anybody wants to beat me to it in the comments, feel free.
Update: Ok, I'm not happy with it, but here goes. Edits to follow (I hope.)
Offering to you the unbloody sacrifice of your Son, we humbly implore you, Almighty God: that prayerfully joined to the understanding of the passion brought forth by St. Bonaventure the bishop, our minds and hearts might also be inflamed with the fire of charity.
Improvements are welcome!