Spirit & Truth:

Notice the Verse says MUST which means “be commanded, be urged to : ought by all means, be required by law, be unreasonably or perversely compelled to, be compelled by fate or by natural law to.
James 4:6-10 (New International Version)
6But he gives us more grace. That is why Scripture says:
"God opposes the proud
but gives grace to the humble."[a]
7Submit yourselves, then, to God. Resist the devil, and he will flee from you. 8Come near to God and he will come near to you. Wash your hands, you sinners, and purify your hearts, you double-minded. 9Grieve, mourn and wail. Change your laughter to mourning and your joy to gloom. 10Humble yourselves before the Lord, and he will lift you up.

By yielding to the governance & authority of God we are therefore submitting to his will.
For we cannot serve 2 God’s, it is impossible, just as being double minded. One will defiantly out weigh the other. God’s will or the way of the world?
"Set your mind on things above, and not on things on the earth." Colossians 3:2
Do not be lead by things of the flesh but allow GOD to enter in & take his rightful place. Allow him to dwell in you so that you may be purified in his righteousness riding yourself of all ungodly things. So when you speak you will only speak the WORD which is true, & when things of this world come against us we are wise to the tricks of the enemy so we only see the Truth which is the promises of GOD.
"We Walk By Faith, Not By Sight"
2 Corinthians 5:7
As we come before God to worship him who is worth of all praise, be prepared to Worship him with all that you have. Keep in mind that we honor and worship our God who gave everything for our salvation. Just as we prepare for work does not our God deserve the same amount of respect if not more than our boss at work? Condition yourself to enter in his presence so that he as your undivided attention. Don’t just come before the presence of a KING any kind of way! "You shall love the Lord your God with all your heart, and all your soul, and all your mind." Matthew 22:37
John 14:21, "He who has my commandments and keeps them, it is he who loves Me." Being obedient to the commandments of God and not going against his will demonstrates Obedience and also Sacrifice. We must give God our very best which is required. By doing so we can hear him “clearly” understanding the plan and purpose he has for us."And do not be conformed to this world, but be transformed by the renewing of your mind." Romans 12:2 Then and Only then can we worship him I spirit & in truth