10 They were looking intently up into the sky as he was going, when suddenly two men dressed in white stood beside them.

Read Acts 1:10 Using Other Translations

And while they looked stedfastly toward heaven as he went up, behold, two men stood by them in white apparel;
And while they were gazing into heaven as he went, behold, two men stood by them in white robes,
As they strained to see him rising into heaven, two white-robed men suddenly stood among them.