Jews seek a sign; Gentiles seek wisdom. Why can’t these come to a knowledge of the Truth in Jesus Christ?

Until such time one humbles them self before God the Father, repents of sin, sincerely trusts in Jesus as Lord and receives the Holy Spirit as their Tutor, Knowledge and Wisdom, they remain foreigners of God and His promises and the deeper truths of Scripture never penetrate the hardened heart of unbelief; this eternal truism is relevant for Jew, Israelite, Gentile. The “natural man” cannot please God as the Father can only be approached and communed with through the Son and the Spirit (John 14:6; Ephesians 1:13-14).

It is written,

“21 For since in the wisdom of God the world through its wisdom did not come to know God, God was pleased through the foolishness of the message preached to save those who believe. 22 For indeed Jews ask for signs and Greeks search for wisdom; 23 but we preach Christ crucified, to Jews a stumbling block, and to Gentiles foolishness, 24 but to those who are the called, both Jews and Greeks, Christ the power of God and the wisdom of God.

1 Corinthians 1:21-24 (NASB)