Another thing that the verse (Psalms 6:11) says is "Let all my enemies be ashamed and terrified". Rabbi Yochanan said that in the future, God will judge the wicked and return them to Gehenna. Therefore, it is said "Let them return and be ashamed." And Rabbi Yochanan said that in the future, he (God) will judge them and remove them from the world.
Rabbi Shmuel bar Nachmani said that in the future, God will bring all the nations of the idolaters, and they will call to their gods, but He will not answer them. When they see that they are not answered, as it is written (Isaiah 50:2) "When I called, you did not answer", they go before God and complain to Him, saying, "Our God, you did not answer us; now we have come to you." Immediately, He judges them and removes them from the world.
Said Rabbi Yochanan: do not say "in the future" but rather [God removes them] even in this world God did the same to Sisera and to Sennacherib, and removed them from the world. Rabbi Yehoshua ben Levi said, "See how powerful shame is, as it is mentioned twice (in the verse), and in it, with words, God shames the idolatrous nations and blesses the righteous, as it is written (Isaiah 45:17), "But Israel shall be saved by the Lord with an everlasting salvation; you shall not be ashamed nor confounded world without end."
Rabbi Yehoshua ben Levi said, "If not for the book of Ezekiel, only the verse (Ezekiel 16:63) "So that you may remember and be ashamed" (that is written in it) would suffice. But (the verse continues) "and never open your mouth again" (which is not written in it). That is enough. When David saw that this is the power of shame, he began to pray about it and said, "In you, Lord my God, I put my trust; save me from all those who persecute me and shame me forever."...