Context for Zenos: In Zenos’ construction, he has taken the imagery of prayer from one of being distant to being centered in the home. In each of those cases, the imagery was one of being alone. Now he has shifted to a location where there are others present. In the last verse he noted that personal prayer was more effective that public prayer that is designed to be public. Now he places this individual prayer in a public context. God hears his individual cries even when he is in the midst of others who are praying to be seen of others.
Context for Alma’s discourse: If we presume, as we have earlier, that the exclusion from the Zoramite open-air synagogue was social and not legal, then Alma may be telling them that they may also worship in the synagogue among the Zoramites. They may prayer even in the location where the Zoramite prayer is being give, because God can hear them in the midst of the larger congregation of more public prayer-offerers.