משנה אויף רות 2:4

If one says “May the good bless you,” this is the way of heresy. [If one says], “May Your mercy reach the nest of a bird,” “May Your name be mentioned for the good,” “We give thanks, we give thanks,” they silence him. One who uses euphemisms in the portion dealing with forbidden marriages, he is silenced. If he says, [instead of] “And you shall not give any of your seed to be passed to Moloch,” (Leviticus 18:21) “You shall not give [your seed] to pass to a Gentile woman,” he silenced with a rebuke.

One must bless [God] for the evil in the same way as one blesses for the good, as it says, “And you shall love the Lord your God with all your heart, with all your soul and with all your might” (Deuteronomy 6:5). “With all your heart,” with your two impulses, the evil impulse as well as the good impulse. “With all your soul” even though he takes your soul [life] away from you. “With all your might” with all your money. Another explanation, “With all your might” whatever treatment he metes out to you. One should not show disrespect to the Eastern Gate, because it is in a direct line with the Holy of Holies. One should not enter the Temple Mount with a staff, or with shoes on, or with a wallet, or with dusty feet; nor should one make it a short cut, all the more spitting [is forbidden]. All the conclusions of blessings that were in the Temple they would say, “forever [lit. as long as the world is].” When the sectarians perverted their ways and said that there was only one world, they decreed that they should say, “for ever and ever [lit. from the end of the world to the end of the world]. They also decreed that a person should greet his fellow in God’s name, as it says, “And behold Boaz came from Bethlehem and said to the reapers, ‘May the Lord be with you.’ And they answered him, “May the Lord bless you’” (Ruth 2:. And it also says, “The Lord is with you, you valiant warrior” (Judges 6:12). And it also says, “And do not despise your mother when she grows old” (Proverbs 23:22). And it also says, “It is time to act on behalf of the Lord, for they have violated Your teaching” (Psalms 119:126). Rabbi Natan says: [this means] “They have violated your teaching It is time to act on behalf of the Lord.”