The excerpt represents the core issue or deciding factor on which you must meditate, and is drawn from King James Bible:
son's son, what things I have wrought in Egypt, and my signs which I
have done among them; that ye may know how that I am the LORD.
EXO 10:3 And Moses and Aaron came in unto Pharaoh, and said unto him,
Thus saith the LORD God of the Hebrews, How long wilt thou refuse to
humble thyself before me? let my people go, that they may serve me.
EXO 10:4 Else, if thou refuse to let my people go, behold, to morrow
will I bring the locusts into thy coast:
EXO 10:5 And they shall cover the face of the earth, that one cannot be
able to see the earth: and they shall eat the residue of that which is
escaped, which remaineth unto you from the hail, and shall eat every
tree which groweth for you out of the field:
King James Bible