Arcana Coelestia # 3039
3039. 'He will send His angel before you' means Divine Providence. This is clear from the meaning of 'angel' in the Word as the Lord, though which aspect of the Lord it is appears from the train of thought, as dealt with in 1925. The aspect meant here is clearly Divine Providence. The reason why the Lord is meant in the Word by 'angels' is that everything spoken in the Word through the Prophets and all others, though dictated by angels, is received from the Lord, that is, it is the Lord's Own. Angels in heaven also acknowledge and perceive that nothing good or true originates in themselves but in the Lord; indeed so great is their acknowledgement and perception that they turn away from everything that suggests any other idea. This explains why 'angels', that is to say, good ones, are used to mean the Lord, though which aspect of the Lord it is appears from the train of thought.
Arcana Coelestia # 560
560. THE INTERNAL SENSE
Before one can go any further, reference must be made to the Church as it was before the Flood. In general it went the same way as subsequent Churches, as the Jewish Church before the Lord's Coming and the Christian Church after; that is, people corrupted and adulterated the cognitions of true faith. In particular as regards the member of the Church before the Flood, he conceived dreadful persuasions in the process of time and immersed the goods and truths of faith in filthy desires, to such an extent that scarcely any remnants resided with him. And once they had become such those people suffocated themselves so to speak, for nobody can live without remnants. Indeed, as already stated, it is remnants that make man's life superior to that of animals; it is from remnants, or from the Lord through them, that anyone is enabled to be a human being, to know what good and truth are, and to reflect on individual things, and so to think and to reason. For remnants alone are what contain spiritual and celestial life.