John Wesley on Psalms 118:22

The builders - The commonwealth of Israel and the church of God are here and elsewhere compared to a building, wherein, as the people are the stones, so the princes and rulers are the builders. And as these master - builders rejected David, so their successors rejected Christ. Head stone - The chief stone in the whole building, by which the several parts of the building are upheld and firmly united together. Thus David united all the tribes and families of Israel: and thus Christ united Jews and Gentiles together. And therefore this place is justly expounded of Christ, Mark 12:10 Acts 4:11 Rom 9:32 Eph 2:20. And to him the words agree more properly than to David.