So, you know when you watch a movie and there are a bunch of characters in it? Well, in Judaism, there is one really important character that is super important to everyone who is Jewish. This character is called God or Hashem, and He is very powerful and very important to Jewish people.
Now, here's where it gets a bit tricky. God is often referred to as the Godhead in Judaism, which means that He is made up of three different parts: God the Father, God the Son, and God the Holy Spirit. Each one of these parts is like a different part of a puzzle that makes up the whole picture of God.
But, even though God is three different parts, He is still one God. It's kind of like a superhero who can do a bunch of different things like fly and lift really heavy things and shoot lasers out of their eyes. They can do all these different things, but they're still just one superhero.
So, in Judaism, the Godhead is made up of three parts, but it's still just one God, who is very important and powerful to Jewish people.