I guess the best way to explain it is that you are quoting a verse that doesn't exist in the chapter you posted. Matthew 25 does not say what you quoted it to say.
The proverbs verse seems to point out that seeking wisdom is what is important. Though since it mentions kings it could be referring to the conquests and journys that kings go out and about to. But it doesn't mean that God is concealing all types of truths, or if anything (if you want to go outside of the context of proverbs and the verse) one can take it to mean that it is our duty to seek the truth of what God has in nature itself.
You are spinning?
Here is the parable of the sheep and goats;
Matthew 25:31-33
King James Version (KJV) 31 When the Son of man shall come in his glory, and all the holy angels with him, then shall he sit upon the throne of his glory:
32 And before him shall be gathered all nations: and he shall separate them one from another, as a shepherd divideth his sheep from the goats:
33 And he shall set the sheep on his right hand, but the goats on the left.41 Then shall he say also unto them on the left hand, Depart from me, ye cursed, into everlasting fire, prepared for the devil and his angels:
42 For I was an hungred, and ye gave me no meat: I was thirsty, and ye gave me no drink:
43 I was a stranger, and ye took me not in: naked, and ye clothed me not: sick, and in prison, and ye visited me not.
44 Then shall they also answer him, saying, Lord, when saw we thee an hungred, or athirst, or a stranger, or naked, or sick, or in prison, and did not minister unto thee?
45 Then shall he answer them, saying, Verily I say unto you, Inasmuch as ye did it not to one of the least of these, ye did it not to me.
46 And these shall go away into everlasting punishment: but the righteous into life eternal.