Heart to Heart in Christ United

What: The hymn below is of Moravian origin, and was once popular for weddings. Most translations (and there are quite a few) make this an odd thing, since the original hymn was talking about unity in the church, although unity in wedlock is not a great stretch. So, I've adapted the text for a wedding context.
Who: This was written by the famous Pietist Moravian Preacher, Count Nicolaus von Zinzendorf, known to most hymn lovers for Jesus, Thy Blood and Righteousness.
Changes: I've taken the most wedlock-appropriate parts of different translations, altered pronouns where needed, updated the language, and smoothened it all out.
Tune: The tune is O du liebe meiner liebe, LSB 423.

Heart to Heart in Christ united,

And by Him created new;

By His love divine excited,

Each of you, as He did do.

So that nothing whatsoever

Can relax this blessed tie,

In Your love, most gracious Savior,

Grant them both stability.

Help them, that with Your direction,

"Love each other" they comply,

Aiming with unfeigned affection

Your love to exemplify.

Let their mutual love be glowing,

So that others plainly see

That they both in You are growing

As one branch eternally.

Oh, that they, Your steps to follow,

Midst affliction, scorn, and spite,

And Your sacred name to hallow,

Did each other more excite!

Help them stir up one another,

Jesus, to keep You in view,

Thus encouraging each other,

Your example to pursue.

Thus these souls here joined together

Will, according to Your prayer,

Be fulfilled by Your dear Father,

And His kind protection share.

Lord, as You're with Him united,

Grant them likewise one to be,

And, by genuine love excited, 

Serve each other willingly.

Herz und Herz vereint zusammen

Count Nicolaus von Zinzendorf

Adapt. MDS

Full Athwart the Gulf Infernal

Who: this is another original hymn by Emanuel Cronenwett in his "Hymns and Poems" of 1926. He put this hymn in the Justification section and gave it the heading "No (one) cometh unto the Father, but by Me."
Changes: I have changed but one word to account for modern pronunciation, everything else is left as is, since this hymn's poetry thrives on textual flavor.
Tune: The meter is 87 87 D and while there are quite a few tunes in LSB for this meter, the only one I believe supports the hymn's character is CENTRAL, LSB 479.

Full athwart the gulf infernal-

Sin 'twixt God and man had riv'n,

Grace has arched the Rock Eternal

Spanning ages, earth and heav'n.

Deep as woe this Arch is founded,

Under-reaching all our sin:

In the depths of Mercy grounded-

Vast as broadest wants of men.

God, the Son, assumed our nature-

Spotlessly of virgin born,

Bridged the chasm 'twixt the Maker

And humanity forlorn.

Christ, the God-man, stooped to save us

Underneath our sin and death,

And as Victor rose to raise us

To Himself through heav'n-born faith.

Strong-convictions? These may leave us,

Self-assurance? Vanish quite,

Reason, confidence? Deceive us,

Leave us grope in dismal night.

But the Faith of holy sages

Cheers the church with steadfast ray,

Cleaves to Christ, the Rock of Ages,

And His Word- as stable Stay.

Mercy paved this Way for mortals,

True and sure it leads to bliss;

Else, alas!, once at death's portals

Yawn but depths of the abyss!

None can come to God, the Father,

Save by Thee, the risen Lord;

Advocate and Mediator,

Be Thou evermore adored!

Emanuel Cronenwett, 1877, alt.