Jesus reminded his disciples that, "Anyone who has seen me has seen the Father." (John 14:9 NIV)
So, watching Jesus can tell us all about the Father in Heaven. When Jesus exhibited a passion for "lost" people, he was showing us the Father's passion to save them.
Jesus knew Heaven firsthand and still does (John 3:13). And he also experienced Hell on the cross (Matt. 27:46). This means he knows that each human's destiny for eternity hinges on their decision to follow Christ. That's why he was so passionate to save lost people. And so is the Father in heaven.
Listen and hear more about God's "passion to save".