Hebrews 13:23

23.Know ye that our brother, etc. Since the termination of the Greek verb γινώσκετε, will admit of either renderings, we may read, “Ye know,” or, “Know ye;” but I prefer the latter reading, though I do not reject the other. (293) The probability is, that he was informing the Jews on the other side of the sea of what they did not know. Now, if this Timothy was the renowned companion of Paul, which I am inclined to think, it is very probable that either Luke or Clement was the author of this Epistle. Paul, indeed, more usually calls him his son; and then what immediately follows does not apply to Paul; for it appears that the writer was at liberty and at his own disposal; and besides, that he was then anywhere rather than at Rome; nay, it is very probable, that he was going round through various cities, and was then preparing to pass over the sea. Now all these particulars might have been suitable to the circumstances either of Luke or of Clement after the death of Paul. (294)