Are these verses talking about the same thing or about something different?
Matthew 5:18 NASB - 18 "For truly I say to you, until heaven and earth pass away, not the smallest letter or stroke shall pass from the Law until all is accomplished.
John 19:28 NASB - 28 After this, Jesus, knowing that all things had already been accomplished, to fulfill the Scripture, said, "I am thirsty."