Until the Lord returns there will always be:

1. Poverty - Mk. 14.7: "For you always have the poor with you..."

2. Unbelievers/Wickedness - Mt. 24.37-39: "For as were the days of Noah, so will be the coming of the Son of Man. For as in those days before the flood they were eating and drinking, marrying and giving in marriage, until the day when Noah entered the ark, and they were unaware until the flood came and swept them all away, so will be the coming of the Son of Man." // 2 Thess. 2.3, "the rebellion" comes just prior to the Parousia (see also 2 Tim. 3.1-5); including wicked nations/rulers (see Zechariah 14:2, Revelation 16:12-16, Joel 3:1-2, 9-14, Ezekiel 38-39, Daniel 11:40-44, et al)

3. War - Dan. 9.26: "...to the end there shall be war. Desolations are decreed."

(See also Mt. 24.6-13)

4. Persecutions - 2 Thess. 1.6-8a: "God considers it just to repay with affliction those who afflict you, and to grant relief to you who are afflicted as well as to us, when the Lord Jesus is revealed from heaven with His mighty angels in flaming fire...." (See also Mt. 24.9-13; Acts 14.22)

The Gospel has and will advance gloriously among the nations, but poverty, war, persecutions, and wicked people/nations will be prevalent until Christ appears. - BA Purtle