All in Seeking God’s Kingdom

What does it mean to "seek first the kingdom of God?" Some believe this means that we are to seek God totally and that all else will miraculously be provided. Then there are those who feel it means to seek Him first and foremost, but to continue living the life we currently live using His commandments as a guide. Then, there are also those who think it is alright to live without any change whatsoever, and to insert God into the cracks of their existing life as a stop-gap when trouble arises. Which of these are we, or do we seek Him in some other contrived way? How is it that we seek Him?