I was casually reading 1 Kings 10 and the 14th verse says this
"Now the weight of gold that came to Solomon in one year was six hundred and sixty and six talents of gold"
Does the number have a spiritual significance of him departing from God's law and commandments- namely the king being prohibited from amassing too much gold and silver(Deuteronomy 17)? And taking the number of the beast in that sense?

That’s a good question. But let’s answer it
solely based on the Bible, not speculation or numerology.
1 Kings 10:14 says,
“Now the weight of gold that came to Solomon in one year was six hundred threescore and six talents of gold.” That’s
666 talents, the same number we see in Revelation 13:18, but the context and purpose are
completely different.
In 1 Kings 10, the verse is giving a
historical account of Solomon’s wealth, not making a spiritual judgment about the number 666 itself. Scripture does
not say that this number caused Solomon’s downfall. However, you are right to connect it to
Deuteronomy 17:17, which says that the king
“shall not multiply to himself silver and gold.” That is where Solomon
sinned, not because of the number 666, but because he disobeyed God's clear command not to
accumulate excessive wealth,
horses from Egypt, or
many wives (Deuteronomy 17:16–17). All three warnings were broken by Solomon (1 Kings 10:28–29, 11:1–8).
So yes, there is
spiritual significance to Solomon’s accumulation of gold, but the focus should be on his
disobedience to God’s law, not the symbolic use of the number 666. The Bible itself
never links the 666 talents in Solomon’s day to the “number of the beast” in Revelation. That connection is not made anywhere in Scripture.
In Revelation 13:18, the number 666 is described as the number of a
man,
arithmos gar anthrōpou estin (ἀριθμὸς γὰρ ἀνθρώπου ἐστίν), meaning it relates to human identity, not divine truth. The number there is tied to
the beast, a future global leader empowered by Satan, not to Solomon’s gold. God does not randomly assign spiritual meaning to numbers without explanation, and where Scripture is silent, we should be silent too.
So to conclude, yes, Solomon’s accumulation of gold violated God’s law in Deuteronomy, and it was part of his
spiritual decline. But no, Scripture
does not link that to the number of the beast in Revelation. Any such connection is
reading into the text beyond what God has revealed. Stick to what is written, not what seems symbolic (Proverbs 30:6, 1 Corinthians 4:6).