For those looking for more information on 1 John 5:7-8 as mentioned in my sermon today, you can go to a quick easy reference here:
"This longer reading is found only in eight late manuscripts, four of
which have the words in a marginal note. Most of these manuscripts
(2318, 221, and [with minor variations] 61, 88, 429, 629, 636, and 918)
originate from the 16th century; the earliest manuscript, codex 221
(10th century), includes the reading in a marginal note which was added
sometime after the original composition. Thus, there is no sure evidence of this reading in any Greek manuscript until the 1500s; each such reading was apparently composed after Erasmus’ Greek NT was published in 1516."