Esther 4:2
4:2 And came even before the king's {a} gate: for none [might]
    enter into the king's gate clothed with sackcloth.

    (a) Because he would inform Esther of this cruel
        proclamation.

Esther 4:14
4:14 For if thou altogether holdest thy peace at this time,
     [then] shall there enlargement and deliverance {b} arise to
     the Jews from another place; but thou and thy father's
     house shall be destroyed: and who knoweth whether thou art
     come to the kingdom for {c} [such] a time as this?

     (b) Thus Mordecai spoke in the confidence of that faith
         which all God's children should have; which is that God
         will deliver them, though all worldly means fail.
     (c) To deliver God's Church out of these present dangers.

Esther 4:16
4:16 Go, gather together all the Jews that are present in
     Shushan, and fast ye for me, and neither eat nor drink
     three days, night or day: I also and my maidens will fast
     likewise; and so will I go in unto the king, which [is] not
     according to the law: and if I perish, {d} I perish.

     (d) I will put my life in danger and refer the success to
         God, seeing it is for his glory and the deliverance of
         his Church.