Aren't missions just side issues in the Bible?
By now, you should have read the previous articles leading up to this one.
Remember, the Bible is our authority. Not tradition. Not preconceived notions or opinions. Not some hierarchy.
If you take the time to look up all the verses in those articles previous, you should begin to see that God’s glory and His mission to glorify Himself is the very structure of the redemptive drama and story-line of the Bible. And you would see the great theme of the Bible is that God wants to save some from every people, nation, tribe, and language. (Rev. 5:9; 7:9)
Seeing the structure of the Abrahamic Covenant and God’s Promise and His purpose to make Abraham and his children a blessing to the other nations of the earth – Genesis 12:1-3; 18:18; 22:18; 26:4; 28:14; 49:10 – and the commands to Israel to be a blessing and to tell of His glory to the other nations – Psalm 67; 96:3.
Also, the Bible says that Israel was to be a missionary people, a kingdom of priests (Exodus 19:5-6), and a holy nation (Exodus 19:5-6), a light to the nations, Isaiah 49:6, and even says that it is too small a thing to only bring back and restore the tribes of Israel; seeing this structure and the way Galatians 3:6-8 and 3:16 understand the Abrahamic covenant and that the “seed of Abraham” was the one Messiah; and the fulfillment of that (the Abrahamic covenant) in Revelation 5:9 should make us motivated to evangelize and cause us to see that missions is much more central to the whole redemptive storyline of the Bible.
The drumbeat of God extended His glory and worship to "all nations," "all peoples," "the whole world," "every family of earth," and similar terms, make it very clear that "missions" is NOT a side issue. It is front and center of God's plan and intention for all Christians and local churches everywhere.