Just a curiosity on your tag.
Wasn’t the cross of Christ conspicuous?
Weren’t many salvations conspicuous?
Advertising availability of a gift passed on from another source (as Christ passes on the Father’s love to us) is not vaunting. Vaunting is to promote for vain, selfish purposes. The difference is the attitude: “by the grace of God I pass this benefit to you” is not the same as “look at me, me, me, I benefit you.”
Thanks for your inquiry. It is a reference to 1st Corinthians 13. It’s more of a commentary on boastful philanthropy being called charity. It is not meant as a statement on Christ’s crucifixion or anyone’s salvation. Nothing more to it than that.