In the Greek text 7.53 and 8.1 form a single sentence; Good News Translation omits the verse number 53 and places both verses together under 8.1.
Quoted with permission from Newman, Barclay M. and Nida, Eugene A. A Handbook on the Gospel of John. (UBS Handbook Series). New York: UBS, 1980. For this and other handbooks for translators see here .