'Thing' in the Bible

‘Thus says the Lord: “You shall not go up nor fight against your brothers (countrymen); return, every man to his house, for this thing is from Me.”’” And they listened to and obeyed the words of the Lord and turned back from going against Jeroboam.

Then the Lord said, ‘Who will entice Ahab king of Israel to go up and fall [defeated] at Ramoth-gilead?’ And one said this and another said that.