This hymn is known as 《求奪我心》 or something like《你的靈豈非已見過他》, depends on which hymn book you use.

Hast thou heard Him, seen Him, known Him?
Lyrics: Miss Ora Rowan (1834-1879) [MP3]

1
Have thou heard Him, seen Him, known Him?
Is not thine a captured heart?
Chief among ten thousand own Him,
Joyful choose the better part.

2
Idols once they won thee, charmed thee,
Lovely things of time and sense;
Gilded thus does sin disarm thee,
Honeyed lest thou turn thee thence.

3
What has stripped the seeming beauty
From the idols of the earth?
Not a sense of right or duty,
But the sight of peerless worth.

4
Not the crushing of those idols,
With its bitter void and smart;
But the beaming of His beauty,
The unveiling of His heart.

5
Who extinguishes their taper
Till they hail the rising sun?
Who discards the garb of winter
Till the summer has begun?

6
‘Tis the look that melted Peter,
‘Tis the face that Stephen saw,
‘Tis the heart that wept with Mary,
Can alone from idols draw:

7
Draw and win and fill completely,
Till the cup o’erflow the brim;
What have we to do with idols
Who have companied with Him?