The EFCA includes Mark 16:9-20 (the Longer Ending) in its canonical Scripture and treats these verses as authoritative for doctrine and practice. While the EFCA is aware of modern textual-critical scholarship noting the absence of these verses from the earliest Greek manuscripts, the church does not view this as grounds for excluding them from the canon or diminishing their authority.

The longer ending is used in EFCA worship, preaching, teaching, and disciple training. The passage's content—Christ's resurrection appearances, the Great Commission to all creation, faith in Christ, the signs of the Spirit's power—aligns with EFCA evangelical conviction. The EFCA's high view of Scripture extends to these verses.

The EFCA's approach reflects its conservative evangelical stance: faithfulness to the biblical text as received in the church tradition, even when modern critical scholarship raises questions. The EFCA prioritizes the coherence of the gospel and the theological content of Scripture over narrow textual criticism.