Wherefore this word, breadth, and what is the breadth: It is here
expressed on purpose to succour and relieve, or to shew what
advantage, for support, the knowledge of the overspreading grace of
God by Christ yieldeth unto those that have it, let their trials
be what they will. Alas! the sin of God's children seemeth sometimes
to overspread not only their flesh, and the face of their souls,
but the whole face of heaven. And what shall he do now, that is
a stranger to this breadth, made mention of in the text? Why he
must despair, lie down and die, and shut up his heart against all
comfort, unless he, with his fellow-christians, can, at least,
apprehend what is this breadth, or the breadth of mercy intended
in this place. Therefore Paul for the support of the Ephesians,
prays, that they may know "what is the breadth."

This largeness of the heart and mercy of God towards his people,
is also signified by the spreading out of his hand to us in the
invitations of the gospel. "I said," saith he, "Behold me, behold
me,--I have spread out my hands all the day unto a rebellious
people.--to a people that provoketh me continually" (Isa 65:1-3).

I have spread out my hands, that is, opened my arms as a mother
affectionately doth, when she stoopeth to her child in the warm
workings of her bowels, and claspeth it up in them, and kisseth,
and putteth it into her bosom.

For, by spreading out the hands or arms to embrace, is shewed the
breadth or largeness of God's affections; as by our spreading out
our hands in prayer, is signified the great sense that we have of
the spreading nature of our sins, and of the great desires that
are in us, that God would be merciful to us (Ezra 9:5-7).