This icon takes its subject from the mysterious story where Abraham receives three visitors as he camps by the oak of Mamre. He serves them a meal. As the conversation progresses he seems to be talking straight to God, as if these 'angels' were in some way a metaphor for the three persons of the Trinity. In the background of the picture, a house can be seen at the top left and a tree in the centre. Less distinctly, a rocky hill lies in the upper right corner. The composition is a great circle around the table, focussing the attention on the chalice-bowl at the centre, which reminds the viewer inescapably of an altar at Communion.
On one level this picture shows three angels seated under Abraham's tree, but on another it is a visual expression of what the Trinity means, what is the nature of God, and how we approach him. Reading the picture from left to right, we see the Father, the Son, and the Holy Spirit. This Triptych consists of icon *Holy Trinity* and the prayer *Sighn of Faith*.
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