From John Wesley’s sermon “On Charity“:
We conclude from the whole, (and it can never be too much inculcated, because all the world votes on the other side,) that true religion, in the very essence of it, is nothing short of holy tempers. Consequently all other religions, whatever name it bears, whether Pagan, Mahometan, Jewish, or Christian; and whether Popish or Protestant, Lutheran or Reformed; without these, is lighter than vanity itself.
By these holy tempers, Wesley means humility, meekness, long suffering, and all the other virtues of love found in the Sermon on the Mount or the 13 chapter 1 Corinthians. And — to be as clear as possible — Wesley asserts that my Christianity is deficient if I do not have these holy tempers.