CLAIM: The fullness of this occurs when Jesus delivers Israel at the time of His Second Coming. The psalm was partially fulfilled at Jesus’ triumphal entry into Jerusalem just before His death on the cross (vv. 22, 25-26). Jesus referred to this psalm in Matthew 23:39, stating that He would not enter Jerusalem until the leaders declare, “Blessed is He who comes in the name of the Lord”. (Ps. 118:26, Mt. 23:39).
Partially fulfilled.
Much of the exegesis of this is correct. It is my understanding that this was partially fulfilled in Jesus’ triumphal entry and will have its fullness at the end of the times of the Gentiles, when all of the nation of Israel is saved.