When Hashem saved the Israelites and killed the Egyptians with great miracles at Yam Suf, the angels wanted to sing His praises. Hashem said to them: “The works of My Hand are drowning in the sea, and you are saying praises before Me?!” (Sanhedrin 39b). This is what Hashem said to the angels, whereas Bnei Yisrael were allowed and praised for singing to Hashem. What is the difference between them?