Wiktionary
vb. (en-third-person singularbear witness)
Usage examples of "bears witness".
On the contrary, he deplores, as if it had already taken place, the future abolition of those things by the observance of which there was maintained in Egypt a resemblance of heaven,-he bears witness to Christianity by a kind of mournful prophecy.
So she clings to the rocks and bears witness, and the river, which should feel cold, warms her as the harlequins speed by.
Yet even in this case its self-assertion bears witness to its dissatisfaction with itself, since it cannot fulfil its function until completed by its counterpart in another organism.
The line of blackened trunks marching downhill bears witness to the reason for the clearing.
Her very name, Titania, bears witness to her descent from the giant race of the Titans.