Search me, O God, and know my heart: try me, and know my thoughts.@Psalm 139:23

Francis Bottome, in the Full Salvation Hymnal, edited by James Elliott Irvine (New York: Nelson & Phillips, 1877).

St. Flavian Day’s Psalter, 1563 (🔊 pdf nwc).

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Francis Bottome (1823-1894)

Search me, O God! my actions try,
And let my life appear
As seen by Thine all searching eye—
To mine my ways make clear.

Search all my sense and know my heart,
Who only canst make known,
And let the deep, the hidden part,
To me be fully shown.

Throw light into the darkened cells
Where passions reign within;
Quicken my conscience till it feels
The loathsomeness of sin.

Search all my thoughts, the secret springs,
The motives that control;
The chambers where polluted things
Hold empire o’er the soul.

Search, till Thy fiery glance hast cast
Its holy light thro’ all,
And I by grace am brought at last
Before Thy face to fall.

Thus prostrate, I shall learn of Thee
What I now feebly prove,
That God alone in Christ can be
Unutterable love.