Charles Spurgeon Commentary Ezekiel 36:20

"And when they came unto the nations, whither they went, they profaned my holy name; in that men said of them, These are the people of Jehovah, and are gone forth out of his land." — Ezekiel 36:20 (ASV)

And when they entered unto the heathen, whither they went, they profaned my holy name, when they said to them, These are the people of the LORD, and are gone forth out of his land.

For the heathen did not remember the sin of Israel; they only saw that they had been cast out of their land by their God, so they blamed Jehovah, and not his guilty people. Thus, God's holy name was doubly profaned.