Exodus 19:5 Now then, if you will indeed obey My voice and keep My covenant, then you shall be My own possession among all the peoples, for all the earth is Mine;
When we obey God, we learn to appreciate what God entrusted to us for life. God created and owns all the world and He gave it to us to inhabit and enjoy. If we listen to Him, we will get to know His voice and obedience becomes easy.
Numbers 23:19 God is not a man, that He should lie, Nor a son of man, that He should repent; Has He said, and will He not do it? Or has He spoken, and will He not make it good?
Men will lie to you for their own sinful reasons and then would have to ask for your forgiveness because of their sin. God is not a man and does not need to lie to you. Instead He is faithful and true, so if He promised you something, God will do just what He said He would do for you. Count on it.