1. World evangelization to be fulfilled according to God’s promise (Jos 21:44-45)
    Gen 22:18, Gen 26:4, Gal 3:16, Acts 1:8, Mt 24:14

The land of Canaan, which God promised to the Israelites in the Old Testament, was conquered by the Israelites. (Joshua 21:44-45)

Joshua 21:44 And the Lord gave them rest round about, according to all that he sware unto their fathers: and there stood not a man of all their enemies before them; the Lord delivered all their enemies into their hand.
45 There failed not ought of any good thing which the Lord had spoken unto the house of Israel; all came to pass.

In the Old Testament, God promised that all peoples under the heavens would be blessed through Christ. (Gen 22:18, Gen 26:4, Gal 3:16)

Gen 22:18 And in thy seed shall all the nations of the earth be blessed; because thou hast obeyed my voice.

Gen 26:4 And I will make thy seed to multiply as the stars of heaven, and will give unto thy seed all these countries; and in thy seed shall all the nations of the earth be blessed;

Gal 3:16 Now to Abraham and his seed were the promises made. He saith not, And to seeds, as of many; but as of one, And to thy seed, which is Christ.

God will spread the gospel throughout the world through us who believe in Jesus as the Christ. (Acts 1:8)

Acts 1:8 But ye shall receive power, after that the Holy Ghost is come upon you: and ye shall be witnesses unto me both in Jerusalem, and in all Judaea, and in Samaria, and unto the uttermost part of the earth.

After the gospel is preached all over the world, the end of this world will come and Jesus Christ will return. (Mt 24:14)

Mt 24:14 And this gospel of the kingdom shall be preached in all the world for a witness unto all nations; and then shall the end come.