How do we know Christ is the fulfillment of the Old Testament types?

In the framework of sovereign grace theology, we understand that all types in the Old Testament, such as Samson, serve as foreshadowings of Christ. While Samson began the process of delivering Israel from the Philistines, he did not complete it, highlighting the incomplete nature of the types. In contrast, Christ executed the full work of salvation, declaring, 'It is finished.' The parallels between Samson and Christ are numerous; both faced rejection and contempt from those they sought to save. The grace exhibited in these types points us to the greater reality found in Christ, who fulfills all that those Old Testament figures only began.