Words hurt deeds
Y á NDU ō sh ā NGX í ng: too much talk is easy to cause problems, so that words and deeds are not consistent and conduct is damaged.
Idioms and allusions
[source] the third fold of Qian Qian Chi written by Guan Hanqing in Yuan Dynasty: "it's not that I'm uncertain, I have no memory, and words hurt deeds."
Discrimination of words
Usage: used as object and attribute; used in writing
Words hurt deeds
Give up one's anger and discard one's flaws - juān fèn qì xiá
which it would be awkward to disclose - nán yán zhī yǐn
What you say but what you don't do - yǒu kǒu wú xíng