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James Kraft
The whole bible is God’s word to us. The simplest salvation verse in the bible is Acts 16:31. Believe on the Lord Jesus Christ and thou shalt be saved and thy house.
The deep things of God take time and study. But the Holy Spirit who lives in the believer, Ephesians 1:13, leads us into all truth. God says if we ask for wisdom He will give it to us liberally.