Feel Rejected?

Matthew 21:42 Jesus saith unto them, Did ye never read in the scriptures, The stone which the builders rejected, the same is become the head of the corner: this is the Lord's doing, and it is marvellous in our eyes?

Matthew chapter 21 today, lots and lots to discuss and acknowledge and very beneficial in every way. The scripture that Jesus is referring to here is Psalms 118:22 this is the passage in Psalms:

19. Open to me the gates of righteousness: I will go into them, and I will praise the Lord:
20. This gate of the Lord, into which the righteous shall enter.
21. I will praise thee: for thou hast heard me, and art become my salvation.
22. The stone which the builders refused is become the head stone of the corner.
23. This is the Lord's doing; it is marvellous in our eyes.
24. This is the day which the Lord hath made; we will rejoice and be glad in it.

The other thing that I would like to make note of is the reference here to praise, and earlier in this chapter, in verses 15 and 16 there are children in the temple giving saying "Hosana to the son of David" and really ticked off the chief priests and scribes, to which Jesus responded in verse 16,
"And said unto him, Hearest thou what these say? And Jesus saith unto them, Yea; have ye never read, Out of the mouth of babes and sucklings thou hast perfected praise?"

The reason that bring this up is because of how many times Jesus and children have been mentioned in the past several chapters I believe is note worthy.