In the Greek the word passion is translated pathos.
It's represented in the root word for our pathological. This means being to such a degree that is extreme, excessive, or abnormal. This goes beyond a mere feeling or desire, Jesus actually had an abnormal, excessive, extreme love for us all. In Isaiah 53:10 which foretells of what God is about to do to Jesus, He says, "Yet it pleased the LORD to bruise him; he hath put him to grief: when thou shall make his soul an offering for sin, he shall see his seed, he shall prolong his days, and the pleasure of the LORD shall prosper in his hand."
We find that Jesus loved us so much that it pleased Him to be beaten for my sins, wounded for my transgressions, and chastised so that His peace may be upon me.
No matter how many times I would mess up, not get it right, turn my back on Him, walk away from Him, hurt my loved ones, get prideful, talk back, break His commandments, lie, cheat, steal, covet, kill with my tongue, gossip, backbite, blow a fuse, inject drugs, run to an illicit relationship, prostitute myself out for money, friends, things, job advancement, or any other number of things, that He would be abnormally, excessively and extremely pleased to redeem me with His love. What kind of God loves me like that?