Confidence in God

"Beloved, if our heart does not condemn us, we have confidence toward God.
And whatever we ask we receive from Him, because we keep His commandments and do those things that are pleasing in His sight.
And this is His commandment: that we should believe on the name of His Son Jesus Christ and love one another, as He gave us commandment."
1 John 3:21-23

Faith pleases God, and so does love, for God is love 1 John 4:16.

When we believe in the Lord Jesus Christ, and have love for one another, we may confidently come before Him and ask for healing, knowing that we will receive it.

"Now this is the confidence that we have in Him, that if we ask anything according to His will, He hears us.
And if we know that He hears us, whatever we ask, we know that we have the petitions that we have asked of Him."
1 John 5:14,15

We can know the will of God by believing the Word of God.

"Let us hold fast the confession of our hope without wavering, for He who promised is faithful."
Hebrews 10:23

"Therefore do not cast away your confidence, which has great reward.
For you have need of endurance, so that after you have done the will of God, you may receive the promise."
Hebrews 10:35,36