Even a casual reading of the New Testament shows various applications of the word "church". "I will build my church"—"the church, which is His body"—"Unto Him be glory in the church"—all, obviously, refer to the one universal church. (Matt. 16:18; Eph. 1:23; Eph. 3:21)
But "tell it to the church"—"elders in every church"—and "let not the church be charged" as clearly refer to the local or organized congregation, of which there are many. (Matt. 18:17; Acts 14:23; 1 Tim. 5:16)
Apparently it is not so clear, however, that the differences in these is sometimes more than size and number. Study the differences listed below, and when you have grasped the significance (exemplified in some conclusions we have drawn) you will be able to add other "points" to this list.
Universal Church—A Relationship Of Saints With God
In both heaven and earth <a href="http://bible.logos.com/passage/nkjv/Eph.%203.15" target="_blank" rel="noreferrer noopener">Eph. 3:15</a> <br />
The Lord "adds" members <a href="http://bible.logos.com/passage/nkjv/Acts%202.47" target="_blank" rel="noreferrer noopener">Acts 2:47</a> <br />
Entered by baptism <a href="http://bible.logos.com/passage/nkjv/1%20Cor.%2012.13" target="_blank" rel="noreferrer noopener">1 Cor. 12:13</a> <br />
All saints are here <a href="http://bible.logos.com/passage/nkjv/Gal.%203.27" target="_blank" rel="noreferrer noopener">Gal. 3:27</a> <br />
None but the saved <a href="http://bible.logos.com/passage/nkjv/2%20Tim.%202.19" target="_blank" rel="noreferrer noopener">2 Tim. 2:19</a> <br />
One Shepherd only <a href="http://bible.logos.com/passage/nkjv/Matt.%2023.8" target="_blank" rel="noreferrer noopener">Matt. 23:8</a> <br />
Assembled figuratively <a href="http://bible.logos.com/passage/nkjv/Heb.%2012.23" target="_blank" rel="noreferrer noopener">Heb. 12:23</a> <br />
Satan can't prevail against <a href="http://bible.logos.com/passage/nkjv/Matt.%2016.18" target="_blank" rel="noreferrer noopener">Matt. 16:18</a></p>
Local Church—A Relationship Of Saints With Saints
Earthly, limited <a href="http://bible.logos.com/passage/nkjv/Phil.%201.1" target="_blank" rel="noreferrer noopener">Phil. 1:1</a> <br />
We "join" ourselves to <a href="http://bible.logos.com/passage/nkjv/Acts%209.26" target="_blank" rel="noreferrer noopener">Acts 9:26</a> <br />
By agreement with fellow-saints 3 Jn. 10 <br />
Certain saints here <a href="http://bible.logos.com/passage/nkjv/1%20Cor.%201.2" target="_blank" rel="noreferrer noopener">1 Cor. 1:2</a> <br />
Some "not of us" here <a href="http://bible.logos.com/passage/nkjv/1%20Jn.%202.19" target="_blank" rel="noreferrer noopener">1 Jn. 2:19</a> <br />
Lesser shepherds here <a href="http://bible.logos.com/passage/nkjv/1%20Pet.%205.2" target="_blank" rel="noreferrer noopener">1 Pet. 5:2</a> <br />
Literally assemble <a href="http://bible.logos.com/passage/nkjv/1%20Cor.%2014.23" target="_blank" rel="noreferrer noopener">1 Cor. 14:23</a> <br />
Can and does prevail <a href="http://bible.logos.com/passage/nkjv/Rev.%202.5" target="_blank" rel="noreferrer noopener">Rev. 2:5</a></p>
The universal church is a relationship of individuals with God, that comes first, and exists regardless of what men do or say (3 Jo. 9-10) as long as the individuals walk in God's truth. The local church is an additional tie, of saints with saints, which God wishes us to take in order that we may function as an organized unit—function collectively—to carry out His divine purpose.