ἀγαπήσεις τὸν πλησίον σου ὡς σεαυτόν → love your neighbor as yourself, thou shalt love thy neighbour as thyself, love thy neighbour as thyself
zealously: P. and V. προθύμως, σπουδῇ.
exceedingly: P. and V. σφόδρα, πολύ, Ar. and V. κάρτα (rare P.).