I suppose I will never know until I will meet my Lord in Glory . . .
I read a lot of old things and am used to encountering this type of construction with
shall, but not with
will. If you comb through the King James Bible for it, you will probably find well over a hundred examples. It's in Shakespeare, too; here are a few examples I have memorized from Shakespeare's sonnets (I'm on Sonnet 51 now and still have a long way to go):
"When forty winters shall besiege thy brow
And dig deep trenches in thy beauty’s field,
Thy youth’s proud livery, so gazed on now,
Will be a tattered weed of small worth held." (Sonnet 2)
"As fast as thou shalt wane, so fast thou grow’st
In one of thine, from that which thou departest" (Sonnet 11)
"If thou survive my well-contented day
When that churl Death my bones with dust shall cover,
And shalt by fortune once more resurvey
These poor rude lines of thy deceasèd lover,
Compare them with the bett’ring of the time,
And though they be outstripped by every pen,
Reserve them for my love, not for their rhyme,
Exceeded by the height of happier men." (Sonnet 32)
"Against that time, if ever that time come,
When I shall see thee frown on my defects
Whenas thy love hath cast his utmost sum,
Called to that audit by advised respects;
Against that time when thou shalt strangely pass
And scarcely greet me with that sun thine eye,
When love, converted from the thing it was,
Shall reasons find of settled gravity;
Against that time do I ensconce me here
Within the knowledge of mine own desert,
And this my hand against myself uprear
To guard the lawful reasons on thy part." (Sonnet 49)
And here's an example from
Romeo and Juliet (Act III, Scene II):
"Come, gentle night, come, loving, black-brow'd night,
Give me my Romeo; and, when he shall die,
Take him and cut him out in little stars,
And he will make the face of heaven so fine
That all the world will be in love with night
And pay no worship to the garish sun."
The construction is also found in a number of famous hymns I know:
"Yea, when this flesh and heart shall fail
And mortal life shall cease,
I shall possess within the veil
A life of joy and peace." ("Amazing Grace," by John Newton, 1779)
"When he shall come with trumpet sound,
O may I then in Him be found." ("My Hope Is Based On Nothing Less," by Edward Mote, 1834)
"When I shall reach that happy land,
I'll be forever blessed" ("On Jordan's Stormy Banks," Samuel Stennet, 1787)
"O Lord, haste the day when my faith shall be sight,
the clouds be rolled back as a scroll . . ." ("It Is Well with My Soul," by Horatio Spafford, 1873)