One thing that we do not know is why the Holy Spirit is unpredictable. At a point what is required of us is to take the approach of faith.
God will lead you against your own wish and against your believe. To a point that you may wonder if it is still God who is leading you.
There are things which God will not reveal to you because of what knowledge has occupied your soul.
This limits our usability. God looks around only to find religiously constrained fellows who need to break some shackles of knowledge before they are used.
God desired that the gentiles be saved but He was aware that even the disciples had an inherent discriminatory behavior towards the gentiles.
Then Peter was hungry and was waiting to eat at Joppa when he had a vision to eat meats which he had considered unclean all through his life.
This vision happened three times just for a reason of clarity. When he woke up, God spoke to him that some men were out waiting for him and that he should not hesitate to go with them.
Peter had to travel to the house of gentiles. As you follow God, He is going to ask you to do somethings which you will feel really uncomfortable with.
The fastest way to yield to the promise of God is to give everything to God including whatever you think that you know.
Come to Him as a clean slate. No form of logic and human reasoning is able to discern the ways of God.
It is only the Holy Spirit that gives you the spirit of discernment.
Open up your heart for God to set in, He will do marvelous wonders with you. You do not need to wait to feel His power before you lay hands on the sick. You do not need to feel differently before you pray.
Peter was surprised when the Holy Spirit fell upon Cornelius and his household. He said; “As I began to speak, the Holy Spirit came on them as he had come on us at the beginning. Then I remembered what the Lord had said: ‘John baptized with water, but you will be baptized with the Holy Spirit”~Acts 11:15-16.
Do not continue to hold back. What we do not know is the extent which the Holy Spirit moves as we pray, worship or speak.
Sometimes believers are trapped into believing that nothing happens when they pray. Please come out of this disbelief if this has been your problem.
All you have are all you need. Call the name of the Lord upon every situation as many times as you will and then rest in His will.
God will do exceedingly beyond your imaginations.