
Here's Newton's text. It's Hymn No. 119 in Gadsby's Hymns [1834]. I'd encourage you to order a copy of Gadsby's Hymns and read it along with your Trinity hymnal. Here's the web address where you can order Gadsby's hymns http://www.graceandtruthbooks.com/listdetails.asp?ID=78
Hymn No. 119 Access to God in Christ-[Eph. 2:18; 3:12; Hebrews 10:19]
1. Great God! from thee there's nought concealed,
Thou seest my inward fraom;
To thee I always stand revealed
Exactly as I am!
2. Since I can hardly, therefore, bear
What in myself I see;
How vile and black must I appear,
Most holy God, to thee!
3. But since my Saviour stands between,
In garments dyed in blood,
'Tis he, instead of me, is seen,
When I appraoch to God.
4. Thus, though a sinner I am safe;
He pleads, before the throne,
His life and death on my behalf,
And calls my sins his own.
5. What wondrous love, what mysteries,
In this appointment shine!
My breaches of the law are his,
And his obedience mine.