Verses with the word stedfastly in the New Testament (8 verses):

Luke 9:51
And it came to pass, when the time was come that he should be received up, he stedfastly set his face to go to Jerusalem,

Acts 1:10
And while they looked stedfastly toward heaven as he went up, behold, two men stood by them in white apparel;

Acts 2:42
And they continued stedfastly in the apostles' doctrine and fellowship, and in breaking of bread, and in prayers.

Acts 6:15
And all that sat in the council, looking stedfastly on him, saw his face as it had been the face of an angel.

Acts 7:55
But he, being full of the Holy Ghost, looked up stedfastly into heaven, and saw the glory of God, and Jesus standing on the right hand of God,

Acts 14:9
The same heard Paul speak: who stedfastly beholding him, and perceiving that he had faith to be healed,

2 Corinthians 3:7
But if the ministration of death, written and engraven in stones, was glorious, so that the children of Israel could not stedfastly behold the face of Moses for the glory of his countenance; which glory was to be done away:

2 Corinthians 3:13
And not as Moses, which put a vail over his face, that the children of Israel could not stedfastly look to the end of that which is abolished: