knowing this first, that no prophecy of scripture is of private interpretation.

Being conscious in the first place that no man by himself may give a special sense to the words of the prophets.

τουτο πρωτον εξευροντες, οτι ουδεμια προφητεια της γραφης γινεται εξ ιδιας του προφητευοντος διασαφησεως·

Knowing this first, that no prophecy of the scripture is of any private interpretation.