What did Christ mean "But seek ye first the kingdom of God, and his righteousness" be specific please?

Good answer by Maybe. The kingdom of God is also known as righteousness, peace and joy in the Holy Spirit. (Romans 14:17) When we make it a priority each day to keep our inner being flowing with God's righteousness (that is, the state of our innocence and right being), peace and joy, we will continually see His faithful supply of things that we need (materially and spiritually) manifested in our lives. :)