Akademik

Вашими бы устами да мед пить.
would like it to be as you are saying. (It is used to express doubt in response to a prediction of success.) See Из твоих уст да Богу в уши (И)
Cf: From your lips to God's ears (Am.). If only it were true (Am., Br.). It is too good to be true (Am., Br.). May your words come true (Br.). Out of thy mouth into God's ears (Br.)

Русско-английский словарь пословиц и поговорок. . 2013.