'Solemn' in the Bible

If only I had a traveler’s lodging placein the wilderness,I would abandon my peopleand depart from them,for they are all adulterers,a solemn assembly of treacherous people.

“Hear the words of this [solemn] covenant, and speak to the men of Judah and to the people of Jerusalem.

Say to them, ‘Thus says the Lord, the God of Israel, “Cursed is the man who does not heed the words of this covenant

And the Lord said to me, “Proclaim all these words in the cities of Judah and in the streets of Jerusalem: ‘Hear the words of this [solemn] covenant and do them.

Yet they did not obey or incline their ear [to listen to Me], but everyone walked in the stubborn way of his [own] evil heart. Therefore I brought on them all [the suffering threatened in] the words of this covenant, which I commanded them to do, but they did not.’”

They have returned to the wickedness of their ancestors who refused to hear My words; they have followed other gods [in order] to serve them. The house of Israel and the house of Judah have broken My [solemn] covenant which I made with their fathers.”

Do not treat us with contempt and condemn us, for Your own name’s sake;Do not disgrace Your glorious throne;Remember [with consideration] and do not break Your [solemn] covenant with us.

Then they will answer, ‘Because the people ignored and abandoned the [solemn] covenant with the Lord their God and worshiped other gods and served them.’”

The men who have violated My covenant, who have not kept the terms of the solemn pledge which they made before Me when they split the [sacrificial] calf in half, and then afterwards walked between its separated pieces [sealing their pledge to Me by placing a curse on themselves should they violate the covenant—those men I will make like the calf]!