Ezekiel 37:3

‘And he said to me, “Son of man, can these bones live?” And I answered, “O Lord Yahweh, you know.”

Then God questioned Ezekiel as to whether he thought that anything could bring the skeletons to life. The reply would have seemed obvious. But Ezekiel had seen many wonders and was cautious. So he gave a humble and evasive reply. It was solely in the Lord Yahweh's hands. (His guarded reply helps to demonstrate that he had no belief in a resurrection, otherwise he would have mentioned it).