The gematria of וְ֝יֹדְעֵ֗י עֵדֹתֶֽיךָ is 604. See what else shares that value and compose your own phrase.
A Hebrew gematria calculator: work out the value of any word or phrase, and find everything else that shares it.
For example: משיח אהבה תורה ירושלים אמת שלום