Just about everything can be questioned by someone, but here you go:
Matthew 10:5-8
5 These twelve Jesus sent forth, and commanded them, saying, Go not into the way of the Gentiles, and into any city of the Samaritans enter ye not:
6 But go rather to the lost sheep of the house of Israel.
7 And as ye go, preach, saying, The kingdom of heaven is at hand.
8 Heal the sick, cleanse the lepers, raise the dead, cast out devils: freely ye have received, freely give.
Do you see that which the twelve were instructed to preach? Heal the sick cast out devils, heal the lepers, pretty much similar that that stated in Mark 16.
Now, granted, there are those who like to play lingual and punctuational gymnastics by claiming that verse 8 is a shift in focus. They do so at the expense to honesty, for the Lord stated that in conjunction with the preaching the Kingdom of Heaven. Irrespective of the dishonest handling by the nay-sayers, the grammatical construct of the phrasing allows for no differentiation in focus nor direction, for they also were instructed to give freely as they had been given, which is a part of the message they were clearly instructed to preach to Israel.
So, are YOU onboard with the clarity of what's stated, or do you subscribe to the grammatical change games that others play with this?
Matthew 28:19-20
19 Go ye therefore, and teach all nations, baptizing them in the name of the Father, and of the Son, and of the Holy Ghost:
20 Teaching them to observe all things whatsoever I have commanded you: and, lo, I am with you alway, even unto the end of the world. Amen.
Again, Israel is to be instructed to observe ALL THI|NGS the Lord commanded them through the disciples, which includes healing the sick, casting out demons, etc., and discipling the nations involves...powerlessness of power under the Kingdom Gospel.
It's interesting that you would appeal to questions about the canonized writings, in spite of hundreds of manuscript copies containing the latter verses of Mark 16. That's very convenient to appeal to just five manuscripts that disagree with each other at a far higher percentage than the Textus Receptus manuscripts, and with known edits as many as five times in places.
It seems that you really should do more homework before appealing to such base and inferior arguments vomited by liberal scholars in modern translations. Their appeals to antiquity is a fundamental fallacy many scholars knew to avoid.
MM