For the vision awaits an appointed time; it testifies of the end and does not lie. Though it lingers, wait for it, since it will surely come and will not delay.
KJV
For the vision [is] yet for an appointed time, but at the end it shall speak, and not lie: though it tarry, wait for it; because it will surely come, it will not tarry.
ASV
For the vision is yet for the appointed time, and it hasteth toward the end, and shall not lie: though it tarry, wait for it; because it will surely come, it will not delay.