Joh 12:5
12:5 {1} Why was not this ointment sold for three hundred pence,
     and given to the poor?

 (1) A horrible example in Judas of a mind blinded with
     covetousness, and yet pretending godliness.

Joh 12:7
12:7 {2} Then said Jesus, Let her alone: against the day of my
     burying hath she kept this.

 (2) This extraordinary anointing, which was a sign, is allowed
     by God so that he may witness that he will not be
     worshipped with outward pomp or costly service, but with
     alms.

Joh 12:9
12:9 {3} Much people of the Jews therefore knew that he was
     there: and they came not for Jesus' sake only, but that
     they might see Lazarus also, whom he had raised from the
     dead.

 (3) When the light of the gospel shows itself, some are found
     to be curious, and others are found to be open enemies (and
     these latter ones should be the least opposed to the
     gospel): others fervently honour him whom they will
     immediately fall away from, and very few receive him as
     reverently as they ought to.  Nonetheless, Christ begins
     his spiritual kingdom in the midst of his enemies.

Joh 12:19
12:19 {4} The Pharisees therefore said among themselves,
      Perceive ye how ye prevail nothing? behold, the world is
      gone after him.

 (4) Even they who go about to oppress Christ are made
     instruments of his glory.

Joh 12:20
12:20 And there were certain Greeks among them that {a} came up
      to worship at the feast:

      (a) After the solemn custom: the Greeks were first so
          called by the name of the country of Greece, where
          they lived: but afterward, all that were not of the
          Jew's religion, but worshipped false gods and were
          also called heathens, were called by the name Greeks.

Joh 12:24
12:24 {5} Verily, verily, I say unto you, Except a corn of wheat
      fall into the ground and {b} die, it abideth alone: but if
      it die, it bringeth forth much fruit.

 (5) The death of Christ is as it were a sowing, which seems to
     be a dying of the corn, but indeed is the cause of a much
     greater harvest: and such as is the condition of the head,
     so will be the condition of the members.
     (b) A wheat corn dies when it is changed in the ground, and
         becomes the root of a fruitful new plant.

Joh 12:27
12:27 {6} Now is my soul troubled; and what shall I say? Father,
      save me from this {c} hour: but for this cause came I unto
      this hour.

 (6) While Christ went about to suffer all the punishment which
     is due to our sins, and while his divinity did not yet show
     his might and power so that the satisfaction might be fully
     accomplished, he is stricken with the great fear of the
     curse of God, and so he cries and prays, and desires to be
     released: yet nonetheless he prefers the will and glory of
     his Father before all things, and his Father allows this
     obedience even from heaven.
      (c) That is, of death which is now at hand.

Joh 12:28
12:28 Father, {d} glorify thy name. Then came there a voice from
      heaven, [saying], I have both glorified [it], and will
      glorify [it] again.

      (d) So then the Father's glory is Christ's glory.

Joh 12:30
12:30 {7} Jesus answered and said, This voice came not because
      of me, but for your sakes.

 (7) Christ foretells to the deaf the manner of his death, the
     overcoming of the devil and the world, and in conclusion
     his triumph.

Joh 12:32
12:32 And I, if I be {e} lifted up from the earth, will draw {f}
      all [men] unto me.

      (e) Christ used a word which has a double meaning, for it
          signifies either to lift up or to get out of the way:
          for he intended them to think of his death, but the
          Jews seemed to take it another way.
      (f) Chrysostom and Theophylact say that this word "all"
          refers to all nations: that is, not only to the Jews.

Joh 12:35
12:35 {8} Then Jesus said unto them, Yet a little while is the
      light with you. Walk while ye have the light, lest
      darkness come upon you: for he that walketh in darkness
      knoweth not whither he goeth.

 (8) Unmeasurable is the mercy of God, but a horrible judgment
     follows if it is condemned.

Joh 12:36
12:36 While ye have light, believe in the light, that ye may be
      the {g} children of light. These things spake Jesus, and
      departed, and did hide himself from them.

      (g) That is, partakers of light.

Joh 12:37
12:37 {9} But though he had done so many miracles before them,
      yet they believed not on him:

 (9) Faith is not of nature, but of grace.

Joh 12:38
12:38 That the saying of Esaias the prophet might be fulfilled,
      which he spake, Lord, who hath believed our report? and to
      whom hath the {h} arm of the Lord been revealed?

      (h) The arm of the Lord is the gospel, which is the power
          of God to salvation to all that believe, and therefore
          the arm of the Lord is not revealed to those whose
          hearts the Lord has not opened.

Joh 12:42
12:42 {10} Nevertheless among the chief rulers also many
      believed on him; but because of the Pharisees they did not
      confess [him], lest they should be put out of the
      synagogue:

 (10) The ones who believe are not only few in number, if they
      are compared with the unbelievers, but also the majority
      of those few (yea, and especially the ones of highest
      rank) fear men more than God.

Joh 12:44
12:44 {11} Jesus cried and said, He that believeth on me,
      believeth {i} not on me, but on him that sent me.

 (11) The sum of the gospel, and therefore of salvation, which
      Christ witnessed in the midst of Jerusalem by his crying
      out, is this: to rest upon Christ through faith as the
      only Saviour appointed and given us by the Father.
      (i) This word "not" does not take anything away from
          Christ which is spoken of here, but is rather spoken
          in way of correction, as if he said, "He that believes
          in me does not so much believe in me as in him that
          sent me."  So is it in Mr 9:37.