For many the idea of fund raising is the largest barrier to transitioning from a career to missions or whatever other ministry the Lord has planted in your heart.
Here are scripture tips (from the book Getting Sent):
Exodus 20:2-4
And God spoke all these words, saying: "I am the Lord your God, who brought you out of the land of Egypt, out of the house of bondage. You shall have no other gods before Me. You shall not make for yourself a carved image, or any likeness of anything that is in heaven above, or that is in the earth beneath, or that is in the water under the earth..."
Psalm 55:22
Cast your burden on the LORD, and he will sustain you; he will never permit the righteous to be moved.
Isaiah 55:10-11
For as the rain and the snow come down from heaven, and return not thither but water the earth, making it bring forth and sprout, giving seed to the sower and bread to the eater, so shall my word be that goes forth from my mouth... it shall not return to me empty, but it shall accomplish that which I purpose, and prosper in the thing for which I sent it.
Jeremiah 1:1-2
Then the word of the Lord came to me, saying: "Before I formed you in the womb I knew you; Before you were born I sanctified you; I ordained you a prophet to the nations ... Do not be afraid of their faces, For I am with you to deliver you," says the Lord. Then the Lord put forth His hand and touched my mouth, and the Lord said to me: "Behold, I have put My words in your mouth... Therefore prepare yourself and arise, And speak to them all that I command you. Do not be dismayed before their faces, Lest I dismay you before them. For behold, I have made you this day A fortified city and an iron pillar, And bronze walls against the whole land ... They will fight against you, But they shall not prevail against you. For I am with you," says the Lord, "to deliver you."
Matthew 28 (need verses here)
And as they went to tell His disciples, behold, Jesus met them, saying, "Rejoice!" So they came and held Him by the feet and worshiped Him. Then Jesus said to them, "Do not be afraid. Go and tell My brethren to go to Galilee, and there they will see Me." ... Then the eleven disciples went away into Galilee, to the mountain which Jesus had appointed for them. When they saw Him, they worshiped Him; but some doubted. And Jesus came and spoke to them, saying, "All authority has been given to Me in heaven and on earth. "Go therefore and make disciples of all the nations, baptizing them in the name of the Father and of the Son and of the Holy Spirit, teaching them to observe all things that I have commanded you; and lo, I am with you always, even to the end of the age." Amen.
Luke 18:1-8
And he told them a parable, to the effect that they ought always to pray and not lose heart. He said, "In a certain city there was a judge who neither feared God nor regarded man; and there was a widow in that city who kept coming to him and saying, 'Vindicate me against my adversary.' For a while he refused; but afterward he said to himself, 'Though I neither fear God nor regard man, yet because this widow bothers me, I will vindicate her, or she will wear me out by her continual coming.'" And the Lord said, "Hear what the unrighteous judge says. And will not God vindicate his elect, who cry to him day and night? Will he delay long over them? I tell you, he will vindicate them speedily. Nevertheless, when the Son of man comes, will he find faith on earth?"
2 Cor 4 <need verses here)
Therefore, since we have this ministry, as we have received mercy, we do not lose heart. But we have renounced the hidden things of shame, not walking in craftiness nor handling the word of God deceitfully, but by manifestation of the truth commending ourselves to every man's conscience in the sight of God. ... For we do not preach ourselves, but Christ Jesus the Lord, and ourselves your bondservants for Jesus' sake. For it is the God who commanded light to shine out of darkness, who has shone in our hearts to give the light of the knowledge of the glory of God in the face of Jesus Christ. But we have this treasure in earthen vessels, that the excellence of the power may be of God and not of us.
1 Timothy 4:14
Let no one despise your youth, but be an example to the believers in word, in conduct, in love, in spirit, in faith, in purity. Till I come, give attention to reading, to exhortation, to doctrine. Do not neglect the gift that is in you, which was given to you by prophecy with the laying on of the hands of the eldership. Meditate on these things; give yourself entirely to them, that your progress may be evident to all.