A number of years ago, Carolyn and I visited a small church where during the worship service a woman began to dance in the aisle. She was soon joined by others. Carolyn and I looked at each other and an unspoken agreement passed between us: “Not me!” We come from church traditions that favor a staid liturgy, and this other form of worship was well beyond our comfort zone.

But if Mark’s story of Mary’s “waste” means anything at all, it suggests that our love for Jesus may express itself in ways that others find uncomfortable (Mark 13:1–9). A year’s wages…