1926. That 'the angel of Jehovah' here is the interior thought which came from the Lord's Internal is clear, as stated, from the train of thought. Here the term interior is used to mean that with the Lord which was united to Jehovah, or His Internal. Union was not accomplished all at once but step by step, that is to say, from earliest childhood through to the last stage of His life in the world, above all by means of temptations and victories. Each temptation and victory brought about union and to the extent He united Himself with His Internal or Jehovah, thought became more interior, and intellectual truth more united to Divine Good. It is the thought such as this that is meant by interior thought flowing from the Lord's Internal and that is specifically represented and meant here by 'the angel of Jehovah'.
Arcana Coelestia #2821
2821. 'The angel of Jehovah called to him out of heaven' means comfort received at that time from the Divine itself. This becomes clear from the meaning of 'calling out of heaven' as giving comfort to, as is also evident from what comes immediately before and directly after; and from the meaning of 'the angel of Jehovah'. When angels are mentioned in the Word they mean something within the Lord, though exactly what belonging to Him is apparent from the whole train of thought, see 1925. Here 'the angel of Jehovah' is used to mean the Divine itself. Something similar is said regarding the Lord, when He endured the very severe temptation in Gethsemane,
There appeared to Him an angel from heaven, strengthening Him. Luke 22:43.
Here also 'an angel from heaven' is used in the internal sense to mean the Divine that was within Him.