Text:
Only Textus Receptus includes this verse: it is omitted by all modern editions of the Greek text (it is genuine as v. 48).
Exegesis and
Translation:
See verse 48.
Quoted with permission from Bratcher, Robert G. and Nida, Eugene A. A Handbook on the Gospel of Mark. (UBS Handbook Series). New York: UBS, 1961. For this and other handbooks for translators see here .