Kjv Version:1 timothy 3: 16
And without controversy great is the mystery of godliness:God was manifest in the flesh, justified in the Spirit, seen of Angels, preached unto the Gentiles believed on in the world, received up in glory.
Amplified version: And great and important,weighty we confess is the hidden truth (the mystic secret) of godliness. He (GOD) was made visible in human flesh, justified(and)vindicated in the (Holy)Spirit, was seen by angels,preached among the nations,believed on in the world,(and) taken up in glory.

What do you want explained? The passage seems quite clear.

does this refer to trinity

Yes, it does

abeg no vex, does this validate trinity

It assumes it. That means that it recognizes no doubt of it.

sorry i dont understand ur last post

Your question was whether or not the passage validates the concept of the trinity. That question implies an argument about the concept of the trinity as to whether or not it is a fact. My answer is that that passage does not just validate the concept of the trinity, it goes further to assume it as a fact and base an argument or discussion on the reality of it.

In other words, that passage takes the trinity as a QED in order to validate something else with it.

tnx no vex small question what d meaning of QED

It's the abbreviation of a latin phrase that roughly means "it has been proved as a fact". It is appended to the end of an incontrovertible argument to say that a concept or hypothesis has been proven factual or disproven and therefore thrown out.

tnx really appreaciate

Alright, bro.