Acts 4:29-30

And now, Lord, observe their threats (take them into account) and grant that Your bond-servants may declare your message (of salvation) with great confidence, while You extend Your hand to heal, and signs and wonders take place through the name (and authority and power) of Your holy Servant and Son Jesus.  

Miracles are available to us today in our time of need.  Jesus has the authority and power to heal, redeem and save.  Our salvation opened the door to healing as our spirits are renewed and line up with the word of God.  Healing will come first to our spirit and then manifest in our bodies.