The exact word trinity it does not.
The bible does teach the trinity
In hebrew there are two words that talk about God.
First hebrew word is Jehovah the supreme God.
The second word is Elohim which means many Gods.
Elohim was often used of the nations around Israel who worshiped many Gods.
example
Exodus 32:8 They have turned aside quickly out of the way which I commanded them: they have made them a molten calf, and have worshipped it, and have sacrificed thereunto, and said, These be thy gods, O Israel, which have brought thee up out of the land of Egypt.
gods in this verse is the word elohim.
Gen 1:2 And the earth was without form, and void; and darkness was upon the face of the deep. And the Spirit of God moved upon the face of the waters.
This verse says the Spirit of Elohim moved upon the face of the waters. This spirit is the spirit of Jehovah elohim. English calls him Lord God. This spirit is one with God.
Isa 44:6 Thus saith the LORD the King of Israel, and his redeemer the LORD of hosts; I am the first, and I am the last; and beside me there is no God.
In this verse it mentions both people of the elohim God.
In hebrew it states thus says Jehovah the King of Israel and his redeemer the Jehovah of his hosts or army.
Jehovah the King is The father.
Jehovah of his Hosts is Jesus the redeemer.
Both are Jehovah as is the spirit of God.
jesus said in talking to John
Rev 22:13 I am Alpha and Omega, the beginning and the end, the first and the last.
final example
Gen 2:4 These are the generations of the heavens and of the earth when they were created, in the day that the LORD God made the earth and the heavens,
From hebrew in the day Jehovah Elohim made the heavens and the earth. Jehovah of many Gods the elohim.
The elohim God is the father, the son, the Holy Spirit.
Gen 1:26 And God said, Let us make man in our image, after our likeness:
In this verse the elohim said let us make man in our image.
Elohim is plural Gods that is why it says us in this verse plural.
Deu 6:4 Hear, O Israel: The LORD our God is one LORD:
In hebrew this verse
Hear O Israel , Jehovah Elohim is alone or one Jehovah
Jehovah the supreme God is Elohim many is alone or one Jehovah
So yes the bible very clearly mentions what we know as the father , the son, the Holy Spirit as being Elohim one Jehovah supreme God