Verses with the word straightway in the Old Testament (4 verses):

1 Samuel 9:13
As soon as ye be come into the city, ye shall straightway find him, before he go up to the high place to eat: for the people will not eat until he come, because he doth bless the sacrifice; and afterwards they eat that be bidden. Now therefore get you up; for about this time ye shall find him.

1 Samuel 28:20
Then Saul fell straightway all along on the earth, and was sore afraid, because of the words of Samuel: and there was no strength in him; for he had eaten no bread all the day, nor all the night.

Proverbs 7:22
He goeth after her straightway, as an ox goeth to the slaughter, or as a fool to the correction of the stocks;

Daniel 10:17
For how can the servant of this my lord talk with this my lord? for as for me, straightway there remained no strength in me, neither is there breath left in me.