Once you get past what seems like who-gives-a-rip particulars & talk of cubits, there's something incredibly welcoming about these outer aspects of the Temple. We are told there are two porches (or porticos); one called Solomon's Porch (on the east), and the other called the Royal Porch (on the south).
But the 'Royal Porch,' by which we are supposed to have entered the Temple, was the most splendid, consisting not as the others, of a double, but of a treble colonnade, formed of 162 pillars, ranged in four rows of 40 pillars each, the two odd pillars serving as a kind of screen, where the 'Porch' opened upon the bridge. (3)
The Ulam (is) the porch or entrance before the temple on the east (Solomon's Porch). In the porch stood the two pillars Jachin and Boaz ...(4)
When it comes to the two pillars we learn they were roughly 30 feet high, and upon them was engraved biblical dynastic prophecies and royal hymns. ... (They) play a double role: they emphasize, on the one hand, the personal relationship between the Temple and the royal family and, on the other, the presence of God within the Temple.
These two pillars were actually given names, that of Jachin (meaning He will establish), and Boaz (meaning strength).
There are a good many dots one can connect to the all the vast meaning associated with the Temple and it's corresponding uses & Feasts. Some of them are finely researched, others are random speculation. I'll not waste my time or yours trying to address them all. I simply want to add my own - those associated with porches & pillars; not certain they fall into either camp.
If I'm the Temple of God's Holy Spirit (and I am), then it is God who has built that Temple and all the amazing furniture/utensils within it. He's made provision for all that's conducted there, even opening wide the separating veil between the common areas and His Holy of Holies. He's invited me in, and welcomed me, going so far as to post pillared-sentries at that portal to assure me that is it He (not my own efforts) that actually establishes and strengthens me once enclosed.
Now I'm thinking I need to invite Judy over to bedazlle my porch and serve a little something for you there. It's the least I can do to welcome you to a porch like no other.
FOOTNOTE: I am challenged to dig deep into the Jewish bedrock that is our Christian worldview. As rich as the Church is all by itself, it is nothing if not connected to God's equally grand (greater?) design for His people Israel. Afterall, our Savior is Jewish.