Did you have those mommy moments when you told your child something only to have them run to daddy, to grandma, to the neighbor to confirm what you said was true?" Me neither. It was more like, "Because I said so." But because we were of little faith, God confirmed His word to us.
Signs and Wonders
There are other Scriptures with balance and warning on the subject...
Sighing deeply in His spirit,
He (Jesus) said,
"Why does this generation seek for a sign?
Truly I say to you, no sign will be given to this generation."
Another time Jesus said to some of the scribes and Pharisees who wanted to see a sign,
"An evil and adulterous generation craves for a sign (miracle);
and yet no sign will be given to it but the sign of Jonah the prophet."
Oh my, I never, ever, ever want to cause Jesus to sigh deeply in His spirit in this kind of way because of me! I never want to be counted in the evil and adulterous generation!
Here's another tidbit I missed before since we usually think of the Great Commission at the end of Matthew, not in Mark 16:14-18...
"Afterward He appeared to the eleven disciples themselves as they were reclining at the table;
and He reproached them (REPROACHED THEM!) for their unbelief and hardness of heart,
because they had not believed those who had seen Him after He had risen (the women).
And He said to them,
'Go into all the world and preach the gospel to all creation.
He who has believed and has been baptized shall be saved;
but he who has disbelieved (didn't He just rebuke them for this?) shall be condemned.
These signs will accompany those who have believed;
in My name they will cast out demons, they will speak with new tongues
(a necessary tool to be able to preach to those in other countries);
they will pick up serpents, and if they drink any deadly poison,
it will not hurt them; they will lay hands on the sick, and they will recover."
Do miracles happen today? Absolutely! I hope y'all have a miracle story or two. I know we do! Are we to accept signs and wonders today? Proceed with caution. There is another warning in II Thessalonians 2:9-10, "...with the activity of Satan, with all power and signs and wonders, and with all the deception of wickedness for those who perish..."