Why is it important for Christians to seek eternal things over worldly things?

In Matthew 6:33, Jesus commands believers to 'Seek first the kingdom of God and His righteousness, and all these things shall be added unto you.' This teaching emphasizes the significance of prioritizing our spiritual relationship with God over materialism or earthly comforts. In John 6, Jesus cautions the crowd not to labor for food that perishes but for that which endures to eternal life. This distinction serves to remind Christians that our focus should be on eternal realities, for these have lasting significance, whereas the pleasures and concerns of this world are fleeting.