Remarkably, the next four verses seemed to be telling Graham exactly what to do

Psalm 118, verse 19:  Open to me the gates of righteousness: I will go into them.

Graham entered the church.

Psalm 142, verse 4:  I looked on my right hand and beheld.

Graham turned to his right.

Psalm 123, verse 1:  Unto thee lift I up mine eyes.

He looked up to find himself staring up at a stained-glass window depicting the four gospel writers: Matthew, Mark, Luke and John.

Psalm 118, verse 22:  The stone which the builders refused is become the headstone of the corner.

The head cornerstone was directly above the extreme right of the figures in the stained-glass window: the image said to depict the gospel writer St. John. 

The penultimate verse seemed to confirm that this was exactly were Graham should look.

Psalm 119, verse 114:  Thou art my hiding place and my shield.

Had the Marian Chalice, an ancient holy relic believed to have been the Holy Grail, really been hidden in Hodnet parish church? The last reference in the list seemed very much to suggest so.

Psalm 116, verse 13:  I will take the cup of salvation.