Mark 16:20:  “Then the disciples went out and preached everywhere, and the Lord worked with them and confirmed his word by the signs that accompanied it.”

Note:  This is the last verse in the book of Mark.  He ends on the most important point:  spread the Good News.  Next, note how the Lord worked with them.  He was with them, guiding their steps, their words, their actions.  God will work with us always as long as we let Him.