We start the journey by grace. It is written:
Eph 2:8 For by grace are ye saved through faith; and that not of yourselves: [it is] the gift of God.
After salvation we start the process of growing in faith. Via this process, God deals with us in His school of faithfulness and mercy. Hence, it is written:
Ps 23:6 Surely goodness and mercy shall follow me all the days of my life: and I will dwell in the house of the LORD for ever.
To be qualify in the school of faithfulness, you need to know what you are supposed to do. Hence it is written:
2Ti 2:15 Study to shew thyself approved unto God, a workman that needeth not to be ashamed, rightly dividing the word of truth. (KJV)
This takes time. And apart from knowing what you are supposed to be doing, you must persistently do these things, this as well takes time. So your days in the school of faithfulness is long.
Hence, while in school, you need support from your sponsor. This is where the ministry of mercy kicks in. Though you stay long in the school of faithfulness, your stay has time limit, hence if you overstay, the ministry of mercy can be exhausted and its support withdrawn then judgement kicks in.
This relationship as revealed by the Holy Spirit above, is the reason while faith is both gift of the spirit and also fruit of the spirit.
Galatians 5:22 But the fruit of the Spirit is love, joy, peace, longsuffering, gentleness, goodness, faith,
1Co 12:9 To another faith by the same Spirit; to another the gifts of healing by the same Spirit;
You can boldly obtain your miracle when you produce faith the fruit as you qualify in the school of His faithfulness, however, because this takes time, when you are yet to qualify on side of faithfulness you can be referred to the side of mercy, and faith given to you as a gift to enable you obtain your miracle.
Hebrew 4:
13 Neither is there any creature that is not manifest in his sight: but all things are naked and opened unto the eyes of him with whom we have to do.
14 Seeing then that we have a great high priest, that is passed into the heavens, Jesus the Son of God, let us hold fast our profession.
15 For we have not an high priest which cannot be touched with the feeling of our infirmities; but was in all points tempted like as we are, yet without sin.
16 Let us therefore come boldly unto the throne of grace that we may obtain mercy, and find grace to help in time of need.
Conclusion
When you approach the throne of grace, on the right hand lies faithfullness of God while on the left hand lies Mercy of God. So the heaven is open. It no longer matter who you are neither what you want, but how badly you want it and your readiness to pay the price to get it.

Matthew 23:23
Woe unto you, scribes and pharisees, hypocrites! For ye pay tithe of mint and anise and cummin and have omitted the weightier matters of the law, judgement, mercy and faith: these ought ye to have done, and not to leave the other undone

From the above scripture the Master himself saw this relationship as all and more important than financial obligation in the faith