Thomas Aquinas Commentary Lamentations 2:6

"And he hath violently taken away his tabernacle, as if it were of a garden; he hath destroyed his place of assembly: Jehovah hath caused solemn assembly and sabbath to be forgotten in Zion, And hath despised in the indignation of his anger the king and the priest." — Lamentations 2:6 (ASV)

Here, he weeps over the destruction of the principal buildings: first, the temple, and second, the king's house, about which it is written, The LORD has purposed to destroy the wall of the daughter of Zion (Lamentations 2:8).

The commentary on the temple is divided into two parts. The first concerns the destruction of the temple itself. The second concerns the objects that were in the temple, as stated in the verse, The LORD has cast off His altar (Lamentations 2:7).

Regarding the destruction of the temple itself, the author makes three observations:

1. He touches upon the destruction of the temple, which is called His tent (which had been made in the desert and installed at Shiloh) and His tabernacle (which was built by Solomon). The comparison to a garden suggests it is easy to destroy. As the psalmist says, And He put away the tabernacle of Shiloh, His tabernacle where He dwelt among men (Psalms 78:60). And Jeremiah says, I will make this house like Shiloh, and I will make this city a curse (Jeremiah 26:6).
2. He notes the cessation of the temple's festivals: The LORD has caused feasts and sabbaths to be forgotten in Zion, as if they no longer please Him as they did before. My soul hates your new moons and your solemnities (Isaiah 1:14).
3. He describes the rejection of its ministers: and has delivered into reproach, that is, He handed over, the king, to whom the defense of the temple belonged, and the priest, to whom its administration belonged. As Job says, He leads away priests without glory and overthrows nobles (Job 12:19).