Believe

Believe in the Lord your God

2 Chronicles 20:20  

Early in the morning they left for the Desert of Tekoa. As they set out, Jehoshaphat stood and said, “Listen to me, Judah and people of Jerusalem! Have faith in the LORD your God and you will be upheld; have faith in his prophets and you will be successful.”

Tears, “LORD” Lord, I believe

Mark 9:24  

Immediately the boy's father exclaimed, “I do believe; help me overcome my unbelief!”
Believe that you receive

Mark 11:24  

Therefore I tell you, whatever you ask for in prayer, believe that you have received it, and it will be yours.

Because they did not believe

Mark 16:14  

Later Jesus appeared to the Eleven as they were eating; he rebuked them for their lack of faith and their stubborn refusal to believe those who had seen him after he had risen.
Have not root, who believe 

Luke 8:13  

Those on the rock are the ones who receive the word with joy when they hear it, but they have no root. They believe for a while, but in the time of testing they fall away.

And slow of heart to believe

Luke 24:25  

He said to them, “How foolish you are, and how slow of heart to believe all that the prophets have spoken!

To those who believe

John 1:12  

Yet to all who received him, to those who believed in his name, he gave the right to become children of God—

How will you believe

John 3:12  

I have spoken to you of earthly things and you do not believe; how then will you believe if I speak of heavenly things?