Augustus Toplady wrote this hymn of praise to the Triune God. I don’t have a date of publication, nor do I know of any details other than that I found it in “The Complete Works of Augustus Toplady”.

Eternal hallelujahs
Be to the Father giv’n,
Who lov’d His own
Ere time begun,
And mark’d them out for heav’n.

Anthems of equal glory,
Ascribe to the Saviour;
Who liv’d and died,
That we, His bride,
Might live with Him for ever.

Hail, co-eternal Spirit,
Thy Church’s new Creator!
The saints He seals,
Their fear dispels,
And sanctifies their nature.

We laud the glorious Triad,
The mystic one in essence;
Till call’d to join
The host that shine
In His immediate presence.

Faithful is He that promis’d
And stands engag’d to save us;
The Triune Lord
Has pass’d His word,
That He will never leave us.

A kingdom He assign’d us
Before the world’s foundation;
Thou God of grace,
Be thine the praise,
And our’s the consolation.

Toplady also wrote “Rock of Ages” and “A Debtor to Mercy Alone”.