Albert Barnes Commentary John 8:20

"These words spake he in the treasury, as he taught in the temple: and no man took him; because his hour was not yet come." — John 8:20 (ASV)

The treasury. See Barnes on Matthew 21:12.

His hour was not yet come. The time for him to die had not yet arrived, and God restrained them, and kept his life. This proves that God has power over wicked men to control them, and to make them accomplish his own purposes.