It means "forsake not the gathering of yourselves together." For example; You know, Sue, that my Lady and I do not attend church...We do not, however forsake the gathering of ourselves together.....If my Lady and I get together, the Holy Spirit joins us because of our praise to God, we are gathered together...scripturally. If I get on my knees and spend time in the Word, and the Holy Spirit is teaching me, I am gathered together...scripturally. How many times have I gone to church and the Holy Spirit was bound, unable to take part, because of legalism and or unbelief? That was not gathering of selves together....Where there is unbelief there is no unity of spirit.