Hebrews 12:28 “Therefore let us be grateful for receiving a kingdom that cannot be shaken, and thus let us offer to God acceptable worship, with reverence and awe.”
The Kingdom of God is here and now! Through faith in Jesus we know that we are a part of the Kingdom of God. Seeking this Kingdom is to see the Kingdom all around you. What is in the Kingdom? God, Peace, Love, Joy, Patience, Kindness, Goodness, Faithfulness, Self-Control, Blessing, Favor, etc. etc. Look for these things around you and you will see the Kingdom of God. For these things cannot live outside of God. Apart from God, there is no Peace or Love or Joy etc.
Have you ever been somewhere that is a lot of fun and observed someone with a sour face? You wonder, how can that person be all ugly face while they are here? It is most likely because they are focused on something other than where they are! They do not see the goodness that is set before them. They have refused to partake of the joy that is all around.
The Kingdom of God is all around you! We get so focused on the things of this world, which are burdensome. Seeking the Kingdom is seeing God and His presence everywhere you go! When you face a problem; question, “Father, where is the solution you have set before me?” When you see that difficult person, “Father, how do YOU see this person? I want to see them the way YOU do.” Seek God on every situation and wait to hear His voice. Seek first the Kingdom of God and His righteousness, and all of these will be added to you! (Matt 6:33)