To the surprise of many, Kierkegaard wrote (and preached) about the sacraments often.
Sacraments
The Gospel Embodied: Luther’s Theology of the Lord’s Supper
Martin Luther sought above all to understand God’s self-revelation in the gospel, and how men and women are to grasp this revelation. In the gospel Luther discovered a God who comes to us. God condescends to us to meet us in our need as Savior and gives himself for...