Ezekiel 34:1-4:

And the word of the LORD came unto me, saying,
Son of man, prophesy against the shepherds of Israel, prophesy, and say unto them, Thus saith the LORD God unto the shepherds; Woe be to the shepherds of Israel that do feed themselves! should not the shepherds feed the flocks?
Ye eat the fat, and ye clothe you with the wool, ye kill them that are fed: but ye feed not the flock.
The diseased have ye not strengthened, neither have ye healed that which was sick, neither have ye bound up that which was broken, neither have ye brought again that which was driven away, neither have ye sought that which was lost; but with force and with cruelty have ye ruled them.

Notes on Ezekiel 34:1-4:

This shows God’s protest that the sick were not being healed in Israel, despite His promises to heal everything and everyone.  He was talking to the priests, not literal shepherds.  God was upset that His work of healing (among other things) was not being done.

You can fall into this same trap if you’re not careful.  For example, you could treat this book as a means to stuff yourself with healing knowledge, but never use this knowledge to help anyone else.  God doesn’t want you to just feed yourself.  Feeding yourself spiritually is important, but God wants you to minister to the needs of the hurting, including the sick!