Arcana Coelestia#8795
8795. 'Saying, Take care not to go up into the mountain' means that there must be no extension whatever to celestial communities which have the love of good. This is clear from the meaning of 'going up' as extending to the Divine as He exists in a higher heaven; and from the meaning of 'the mountain' as the good of love there, dealt with in 4210, 6435, 8327, 8758. The nature of all this is clear from the explanation immediately above in 8794.
Arcana Coelestia#8327
8327. 'On the mountain of Your inheritance' means the heaven where the good of charity resides. This is clear from the meaning of 'mountain of inheritance' as heaven. For 'mountain' means the good of love, 795, 796, 2722, 4210, 6435, and 'inheritance' means another's life, in this instance the Lord's; thus the life of goodness and truth which is derived from the Lord is meant, since those who possess this life are heirs of the kingdom and are called sons, 2658, 2851, 3672, 7212. Since these things are meant by 'the mountain of inheritance', heaven is also meant; for heaven is heaven by virtue of the good of love and it is the inheritance belonging to those who are the Lord's.