The other part of the commission is, Mark
16:17 "And these signs shall follow them that
believe"

The Greek word 'believe' is the same as the
word for 'believeth' in verse 16.

No one has the right to separate these words
of Jesus; telling us that the first words in
verse 16 are for us but that the words in verse 17
were only for the disciples and the early believers.