The unity of God’s people in Old Testament symbolism
When the Lord prayed for His disciples in the upper room “that they all may be one; as Thou, Father, art in Me, and I in Thee, that they also may be one in Us” (Jn. 17:21), they had little understanding of the meaning of His request. But not long afterwards, upon the descent of the Holy Spirit at Pentecost, they experienced and began to understand the reality of the truth behind these words. It was then that the church was formed—a “new man” according to Ephesians 2:15, the body of Christ on earth connected to its Head in heaven. This event transformed a loosely-knit group of cowering disciples into a unified body that would soon turn the world upside down (Acts 17:6). Pentecost was, in fact, an answer to His request on the night before His crucifixion.
The unity of the body of Christ—this oneness of God’s people—is one of the principal New Testament truths about the church. The Lord referred to it, and the apostle Paul expanded upon it through the divine revelation given him. It is also prefigured in the Old Testament Scriptures in the life of Israel. Although Israel and the church are clearly distinct entities in Scripture with clearly distinct destinies, there are, nevertheless, striking similarities between the two. These similarities foreshadow the principle of the “one body,” reflecting both positional and practical sides to this truth. Both sides—the positional and the practical—are extremely beneficial when understood by the follower of Christ.
Old Testament pictures
From the positional standpoint, when the high priest went into the holy place to minister before the Lord (Ex. 28), the names of all of the sons of Israel were borne upon his shoulders. Their names were permanently etched upon two onyx stones, anchored in gold settings, and fastened by chains of gold (vv. 12-14). Israel was continually kept on the breastplate of judgment over the heart as a memorial for the high priest. Not a single tribe was missing. All were represented. This depicts the unity of God’s people (in this case, Israel) and reassured them as their representative ministered on their behalf in the presence of God. Likewise, for we who are living in the light of New Testament truth, it prefigures our security in Christ, kept by the power of God (1 Pet. 1:5) and sustained both by His ability (the chains) and His affection (the heart). It is this knowledge which reassures our hearts as our great High Priest and representative ministers on our behalf in the presence of God (Heb. 9:24).
As to the one body, Israel was one in the eyes of the high priest. The church is also one body. Paul stated definitively to the Corinthians: “for by one Spirit we are all baptized into one body, whether Jews or Greeks, whether Jews or Greek, whether we be bond or free” (1 Cor. 12:13). Every genuinely born-again believer is baptized instantly into the body of Christ upon faith in Jesus Christ, regardless of nationality or any other social or economic difference. Just as Israel was baptized unto Moses and came under His divinely-appointed leadership (1 Cor. 10:1-2), so, too, Christians are the body of Christ even though members in particular (1 Cor. 12:27).
Another illustration of the unity of God’s people is seen in Leviticus 23, where a loaf was waved in the observance of the Feast of Weeks. This stood in contrast to the individual sheaves used in the Feast of First Fruits which took place prior to the Feast of Weeks. This difference pictured the unifying work of the Holy Spirit at Pentecost when the individual disciples were baptized into one body.
The oneness of God’s people is also seen in other ways in the Old Testament. In Joshua’s day, when the ten and a half tribes wanted to obliterate the two and a half tribes for erecting an unauthorized altar (Josh. 22), it required a special envoy to intervene and avert certain disaster. God providentially protected the dissolution of the nation. In His eyes, the nation was one even though the tribes were at odds with each other. The same is seen in the life of David who, when feigning allegiance to the Philistines at Ziklag, is kept from doing battle with his own brethren, even when he suggested it (1 Sam. 29)! God is gracious and intent on maintaining the vital principle of the unity of God’s people. It was true in Rehoboam’s time (2 Chron. 11:4), and it was even true in Balaam’s day when he tried to curse Israel in the wilderness at Balak’s bidding. All the hireling prophet could see when attempting to curse Israel was a “people dwelling alone, not reckoning itself among the nations” (Num. 23:9), in which God had not observed iniquity or wickedness (Num. 23:21). Amazing! How we could all join in with the same remark: “Oh, what God has done!” (v. 23).
New Testament practically
Practically, the church should be one body. But what is true positionally may not always be true practically. Again, in writing to the Corinthian believers, the apostle Paul reprimanded them for the divisions that existed in the assembly. Though he would later teach them about the unity of the body of Christ, he had to address the infighting and other manifestations of carnality that clouded their understanding of the principle of the one body.
Just as some in Israel distanced themselves from the other tribes for the wrong reasons (Josh. 1:12-15), so, too, God’s people today can distance themselves from other believers for the wrong reasons. This can be for selfish, carnal, and even trivial matters, all reflecting an ignorance of the Word of God. Paul exhorted the Philippian believers to strive together for the faith of the gospel with one spirit and one mind (Php. 1:27). That process, which admittedly takes time, is the outcome of the dedicated work of Christ’s gifts to the church: shepherds and teachers who are empowered by the Spirit. They are raised up by God to equip the saints “for the work of the ministry for the edifying of the body of Christ, till we all come to the unity of the faith and of the knowledge of the Son of God unto a perfect man, to the measure of the stature of the fullness of Christ” (Eph. 4:12-13). As a result, Christians become mature in the faith and are educated along the lines of biblical truth, while checking personal pride and ambition.
In the light of increased false teaching today, it is imperative that Christians be discerning as to the elements of true faith. This requires us to differentiate between “the precious and the vile” (Jer. 15:19). Applying the truth of the oneness of the body of Christ and understanding the importance that God places upon it will have a positive impact upon the practical side of our faith and a corresponding effect upon the world around us. In this way, the prayer of our Saviour to His Father will come to pass, and believers will truly manifest the unity of the body so “that the world may believe.”