Psalms of Solomon 8:15
13 There was no sin that was not worse than the Gentiles. 14 On account of this God confused their minds; he made them drunk as if with undiluted wine. 15 He brought the one from the end of the earth, the mighty warrior, he declared war against Jerusalem, and against her land. 16 The leaders of the country met him with joy. They said to him, 'Welcome, we have expected you. Come, all of you, enter in peace.' 17 They graded the rough roads for his coming; they opened the gates to Jerusalem, they lined her walls.
Romans 15:28
27 For they were pleased to do this, and indeed they are indebted to the Jerusalem saints. For if the Gentiles have shared in their spiritual things, they are obligated also to minister to them in material things. 28 Therefore after I have completed this and have safely delivered this bounty to them, I will set out for Spain by way of you, 29 and I know that when I come to you, I will come in the fullness of Christ’s blessing. 30 Now I urge you, brothers and sisters, through our Lord Jesus Christ and through the love of the Spirit, to join fervently with me in prayer to God on my behalf.
Notes and References
"... While the phrase “the end of the earth” was often used in antiquity as a vague and general reference, there is sufficient evidence to indicate that someone who, like Paul, was pointed westward would understand the term “the end of the earth” as a reference to Spain. The territory divided between Noah’s three sons, in Jubilees 8–9, stretches from Eden in the east (8:16) to Gadir (= Cadiz in Spain) in the west (9:26). Rehearsing the same material, Josephus describes Japheth’s territory as extending “in Europe as far as Gadeira”. In a probable reference to Paul’s plans to visit Spain, Clement speaks of him as reaching “the limits of the west” (1 Clem. 5.7). Spain might be in view, in Psalms of Solomon 8:15, in the reference to Pompey as one coming “from the end of the earth,” though Rome is also possible. Except for the quotation of Psalm 19:4 in Romans 10:18 (which also contains Paul’s only use of oikoumenê), the phrase “the end of the earth” does not appear in Paul’s writings. Nonetheless, Paul quotes frequently from a section of scripture where this term is common, especially in connection with a proclamation of salvation to the nations; Paul seems to be compelled to continue westward until he reaches Spain; and the connection between Spain and “the end of the earth” is a natural one ..."
Donaldson, Terence L. "The Field God Has Assigned: Geography and Mission in Paul" in Vaage, Leif E., editor, Religious Rivalries in the Early Roman Empire and the Rise of Christianity (pp. 131-132) Canadian Corporation for Studies in Religion, 2006