'Truly' in the Bible

And Jabez made a prayer to the God of Israel, saying, If only you would truly give me a blessing, and make wider the limits of my land, and let your hand be with me, and keep me from evil, so that I may not be troubled by it! And God gave him his desire.

So all Israel was listed by their families; and, truly, they are recorded in the book of the kings of Israel. And Judah was taken away as prisoners to Babylon because of their sin.

Then all Israel came together to David at Hebron, and said, Truly, we are your bone and your flesh.