"For we do not have a High Priest who cannot sympathize with our weaknesses, but was in all points tempted as we are, yet without sin." (Hebrews 4:15)
So, I see from this, Jesus went through all He did, in this life, so that now He as our Groom can feel for us, and help us with the grace which had Him do so well in all things.
We see, by the way, how well grace made Jesus able to do things right while so suffering. So, among other things, possibly Jesus is demonstrating for our encouragement, showing how well grace can have us loving while we go through . . . anything.
That suffering is included in all Jesus went through, in order for Him to be able to know from actual experience how things are for us.
Going through things, in order to feel for others, then, is included in priesthood.
Now
@cloudyday2 > you have an issue about how much suffering Jesus would need to go through. My opinion is He went through enough, for all purposes, including to be able to feel for us, from His own experience in a human body. Plus since Jesus is God's own Son, there was enough quality in how He suffered, so it was plenty to suffer for any and all people for whatever reason.
The quality of how He went through it all is what matters, more than the quantity. I offer Ephesians 5:2 >
"And walk in love, as Christ also has loved us and given Himself for us, an offering and a sacrifice to God for a sweet-smelling aroma." (Ephesians 5:2)
Jesus was sweet about it; this is what really matters.
I consider, then, that part of why He suffered so much was to show us how much He loves us and was ready to pray >
"Father, forgive them, for they do not know what they do." (in Luke 23:34)
By forgiving like this, Jesus is magnifying how committed He is to forgiveness. This can encourage us, how Jesus does desire to forgive us in spite of how we have hurt ourselves and others; plus this is . . . . our example required also of us!!! And do it sweetly, pleasing our Father.
So, I would say Jesus was multitasking, by so suffering. And quite possibly He can speak for Himself and give you even better and more than I have offered.