Well at least I am not calling people children of the devil (which is what Jesus did to the “religious” people of His day)
News flash... you are the “religious people” of your day.
Jesus said those words to religious teachers who were not teaching the truth, and brought great and burdensome laws on the heads of the people. So don’t clump people here who are at various places of knowing Him.
BTW We are indeed called to speak of the Gospel of Christ, but that speaking had better be under the will and power of God and that not of our own concern. Our concern is to pray and let Him do the work and THEN if opportunity presents put that conversation under His Spirits guidance not our own. Only He knows where the heart is of an unsaved person and how close or far they are from coming. It is He that works the work of Salvation ...not us.