3023. 'I will make you swear by Jehovah, the God of heaven and the God of the earth' means an utterly sacred binding to the Divine which existed in highest things and in the things derived from these. This is clear from the meaning of 'making someone swear by' as binding by means of an oath, for to swear by is nothing else than to be bound to; and this bond is utterly sacred when one swears 'by Jehovah, the God of heaven and the God of the earth', that is, when one is bound to the Divine above and beneath, or what amounts to the same, to the Divine which exists in highest things and in the things derived from these. Since 'Jehovah the God of heaven' is used in reference to the Lord, it means Jehovah Himself, who is called 'the Father', from whom the Lord was conceived and so who was the Lord's Divine Essence; for His very conception transmitted that very Essence from which He had His being. 'Jehovah the God of the earth' means in this case Jehovah who is called 'the Son', and so means His Human Essence. The Human Essence came into being from the Divine Essence when the Lord made that Human Essence Divine also. Thus 'Jehovah the God of heaven' means the Divine as it exists in highest things, while 'Jehovah the God of the earth' means the Divine as it exists in the things derived from these. The Lord however is called 'Jehovah, the God of heaven' by virtue of His Divine in the heavens, and 'the God of the earth' by virtue of His Divine on earth. The Divine in the heavens is also that which resides with man in his internals, whereas the Divine on earth is that which does so in his externals. For man's internals constitute his 'heaven' because through them he is linked to angels, whereas his externals constitute his 'earth' because through them he is linked to men, 82, 913, 1411, 1733. When a person has been regenerated his internals flow into his externals, and externals exist from internals. From this one may also know what the internals of the Church are and what its externals.

The heart means love. A good heart means love to the Lord and to the neighbor, while a hard or stony heart means the love of self or the world -- riches and things. When the psalmist asks the Lord to search his heart, he wants the Lord to see what it is that he loves. And we are what we love. What we eat may form our earthly body, but it's only temporary, what we love forms our spiritual body, beautiful or ugly as we have chosen. It's interesting to note that the first multi-cellular motion of our embryo is the pulsating that starts in a twist of blood vessel that is to become our heart, and the last motion of our natural body is our heartbeat. It is there for all of our natural life. And of course there is a beating heart in our spiritual bodies when we come to put them on.