Why Did God Command Moses to Perform Signs?
Then Moses answered, "But behold, they will not believe me or listen to my voice, for they will say, 'The Lord did not appear to you.'" The Lord said to him, “What is that in your hand?” He said, “A staff.” Then he said, “Throw it on the ground.” So he threw it on the ground, and it became a serpent, and Moses ran from it. But the Lord said to Moses, “Put out your hand and catch it by the tail” - so he put out his hand and caught it, and it became a staff in his hand - "that they may believe that the Lord, the God of their fathers, the God of Abraham, the God of Isaac, and the God of Jacob, has appeared to you." The Lord said furthermore to him, “Now put your hand inside your cloak.” So he put his hand inside his cloak, and when he took it out, his hand was leprous like snow. Then he said, “Put your hand back inside your cloak.” So he put his hand back inside his cloak, and when he took it out, behold, it was restored like the rest of his flesh. Then the Lord said to Moses, "If they will not believe you or listen to the first sign, they may believe the latter sign. But if they will not believe even these two signs or listen to your voice, you shall take some water from the Nile and pour it on the dry ground, and the water that you shall take from the Nile will become blood on the dry ground."
Key Facts
Term Name
Signs
Location
Midian and Egypt
Date
c. 13th century BC
Participants
The Context of Signs
In Exodus 4:1-9, God provides Moses with three miraculous signs to authenticate his divine commission.
The three signs - Moses’ staff becoming a serpent, his leprous hand, and the Nile turning to blood (Exodus 4:2-9) - served as tangible evidence of God’s power working through him. God required these signs both to reassure Moses of His support and to equip him to persuade the Israelites that Yahweh had indeed called him. Moses’ initial reluctance (Exodus 4:1) highlights how these signs addressed his doubts and the practical challenges of leading a skeptical people.
These signs establish a pattern in Scripture where divine authority is confirmed through supernatural acts, setting the stage for later miracles in Israel’s history and the Messianic signs foretold in the prophets.
The Nature of Signs in Exodus 4:1-9
In Exodus 4:1-9, the signs given to Moses function as divine validation of Yahweh's authority and a response to human unbelief.
Moses' initial doubt (Exodus 4:1) reflects the practical challenges of leading a skeptical people, prompting God to provide tangible proof through the staff becoming a serpent, the leprous hand, and the Nile turning to blood (Exodus 4:2-9). These acts demonstrate God's omnipotence and faithfulness to His covenant, affirming that His power transcends both Egyptian idolatry and Israel's spiritual frailty. By overcoming Moses' reluctance, the signs also model how divine empowerment addresses human limitations.
Theological significance emerges in how these signs prefigure Israel's liberation: they foreshadow the plagues that will break Egypt's power (Exodus 7-12) and establish Yahweh's identity as the one who acts decisively for His people. By transforming Moses' doubts into a platform for divine revelation, God underscores that true leadership flows from dependence on His strength, not human capability. These signs thus anchor Israel's collective identity as a people redeemed by miraculous intervention, setting a precedent for later covenantal confirmations in Scripture. This framework connects directly to the broader Exodus narrative, where signs become instruments of both judgment and salvation.
The Broader Biblical Context of Signs
The signs given to Moses in Exodus 4:2‑9 set a pattern of divine authentication that runs through Scripture. This pattern culminates in Jesus’ miracles, which John calls “signs” (John 2:11; 20:30‑31).
While Moses’ signs, such as the staff becoming a serpent and the Nile turning to blood, demonstrated Yahweh’s power to liberate Israel (Exodus 4:2-9), Jesus’ miracles - like healing the blind (John 9:3-7) and raising Lazarus (John 11:43-44) - reveal the inbreaking of God’s kingdom through His person. Both sets of signs authenticate divine authority, yet Jesus’ miracles uniquely disclose His identity as the Messiah and the embodiment of God’s redemptive work.
In John’s Gospel, Jesus’ signs are not mere wonders but pointers to spiritual realities: turning water into wine at Cana (John 2:11) symbolizes the new covenant, while the feeding of the 5,000 (John 6:1-14) prefigures the Eucharist. These acts, like Moses’ signs, confront human unbelief and confirm God’s active presence among His people. By tracing this trajectory from Exodus to John, Scripture underscores that signs are instruments of divine revelation, bridging the gap between the unseen God and a world in need of salvation.
How Signs Still Matters Today
The biblical pattern of signs, as seen in Exodus 4:1-9, continues to shape modern discussions about divine authentication and spiritual discernment.
Signs in Scripture authenticated divine authority (Exodus 4:1-9), yet modern believers must approach claims of supernatural validation with discernment, recognizing that spiritual maturity involves trusting God's character beyond visible wonders. While Scripture affirms God's power to act through signs (Exodus 4:2-9), the New Testament also emphasizes that true faith is rooted in Christ's finished work, not merely in miraculous experiences (John 20:30-31). Overemphasizing signs risks reducing faith to spectacle or fostering dependency on sensationalism, potentially undermining the quiet work of the Holy Spirit in ordinary lives. Thus, believers should balance openness to God's activity with a critical engagement of Scripture, ensuring that signs align with biblical truth and edify the community.
Going Deeper
To deepen our understanding of signs in Scripture, further study of key passages is essential.
Exodus 7-12 records the plagues as signs of God’s judgment and power over Egypt, while John 20:30-31 emphasizes that Jesus’ miracles authenticate His identity and mission. Scholars debate whether signs primarily serve to persuade or to reveal divine truth, but both passages underscore that signs are not ends in themselves but pointers to God’s covenantal faithfulness and salvation.
Further Reading
Key Scripture Mentions
Exodus 4:1-9
God gives Moses three signs to confirm his divine commission and address his doubts.
Exodus 7-12
The ten plagues serve as signs of God's power over Egypt and liberation of Israel.
John 20:30-31
Jesus' miracles are presented as signs that authenticate His identity and mission.
Related Concepts
Divine Authority (Theological Concepts)
The validation of God's power and will through supernatural acts in Scripture.
The Exodus (Events)
God's liberation of Israel from Egypt, framed by signs and covenantal promises.
Faith (Terms)
Trusting in God's character and promises despite human limitations or uncertainty.