A willing mind happens when rest in the Lord is rendered!

For if there be first a willing mind, it is accepted according to that a man hath,

and not according to that he hath not. For I mean not that other men be eased, and ye burdened: But by an equality, that now at this time your abundance may be a supply for their want, that their abundance also may be a supply for your want: that there may be equality:

As it is written, He that had gathered much had nothing over; and he that had gathered little had no lack.

Teamwork renders rest especially reliance (it is rest and requires trusting God:)

Psalm 37:7 KJVS

[7] Rest in the Lord, and wait patiently for him: fret not thyself because of him who prospereth in his way, because of the man who bringeth wicked devices to pass.

Exodus 33:14 KJVS

[14] And he said, My presence shall go with thee, and I will give thee rest.

Joshua 1:13 KJVS

[13] Remember the word which Moses the servant of the Lord commanded you, saying, The Lord your God hath given you rest, and hath given you this land.

Psalm 95:7-11 KJVS

[7] For he is our God; and we are the people of his pasture, and the sheep of his hand.

To day if ye will hear his voice,

[8] Harden not your heart, as in the provocation, and as in the day of temptation in the wilderness: [9] When your fathers tempted me, proved me, and saw my work. [10] Forty years long was I grieved with this generation, and said, It is a people that do err in their heart, and they have not known my ways: [11] Unto whom I sware in my wrath that they should not enter into my rest.

Isaiah 32:17 KJVS

[17] And the work of righteousness shall be peace; and the effect of righteousness quietness and assurance for ever.

Hebrews 4:1-3 KJVS

[1] Let us therefore fear, lest, a promise being left us of entering into his rest, any of you should seem to come short of it. [2] For unto us was the gospel preached, as well as unto them: but the word preached did not profit them, not being mixed with faith in them that heard it. [3] For we which have believed do enter into rest, as he said, As I have sworn in my wrath, if they shall enter into my rest: although the works were finished from the foundation of the world.

Matthew 11:28-30 KJVS

[28] Come unto me, all ye that labour and are heavy laden, and I will give you rest. [29] Take my yoke upon you, and learn of me; for I am meek and lowly in heart: and ye shall find rest unto your souls. [30] For my yoke is easy, and my burden is light.

Hebrews 4:11-16 KJVS

[11] Let us labour therefore to enter into that rest, lest any man fall after the same example of unbelief. [12] For the word of God is quick, and powerful, and sharper than any twoedged sword, piercing even to the dividing asunder of soul and spirit, and of the joints and marrow, and is a discerner of the thoughts and intents of the heart. [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.

Philippians 4:4-12 KJVS

[4] Rejoice in the Lord alway: and again I say, Rejoice. [5] Let your moderation be known unto all men. The Lord is at hand. [6] Be careful for nothing; but in every thing by prayer and supplication with thanksgiving let your requests be made known unto God. [7] And the peace of God, which passeth all understanding, shall keep your hearts and minds through Christ Jesus. [8] Finally, brethren, whatsoever things are true, whatsoever things are honest, whatsoever things are just, whatsoever things are pure, whatsoever things are lovely, whatsoever things are of good report; if there be any virtue, and if there be any praise, think on these things. [9] Those things, which ye have both learned, and received, and heard, and seen in me, do: and the God of peace shall be with you. [10] But I rejoiced in the Lord greatly, that now at the last your care of me hath flourished again; wherein ye were also careful, but ye lacked opportunity.

[11] Not that I speak in respect of want: for I have learned, in whatsoever state I am, therewith to be content.

[12] I know both how to be abased, and I know how to abound: every where and in all things I am instructed both to be full and to be hungry, both to abound and to suffer need.

Isaiah 46:9-13 KJVS

[9] Remember the former things of old: for I am God, and there is none else; I am God, and there is none like me, [10] Declaring the end from the beginning, and from ancient times the things that are not yet done, saying, My counsel shall stand, and I will do all my pleasure: [11] Calling a ravenous bird from the east, the man that executeth my counsel from a far country: yea, I have spoken it, I will also bring it to pass; I have purposed it, I will also do it. [12] Hearken unto me, ye stouthearted, that are far from righteousness: [13] I bring near my righteousness; it shall not be far off, and my salvation shall not tarry: and I will place salvation in Zion for Israel my glory.