Even so faith, if it hath not works, is dead, being alone.(James 2:17)

Yea, a man may say, Thou hast faith, and I have works: shew me thy faith without thy works, and I will shew thee my faith by my works.(James 2:18)

Thou believest that there is one God; thou doest well: the devils also believe, and tremble.(James 2:19)

But wilt thou know, O vain man, that faith without works is dead?

Was not Abraham our father justified by works, when he had offered Isaac his son upon the altar?(James 2:21)

Seest thou how faith wrought with his works, and by works was faith made perfect?(James 2:22)

And the scripture was fulfilled which saith, Abraham believed God, and it was imputed unto him for righteousness: and he was called the Friend of God.(James 2:23)

Other publications related to "James 2:20":

Romans 4 - How does faith work?
Exploring the importance of faith in salvation and how it works through examples from the Bible, particularly the stories of Mary, Joseph, Zacharias, and Abraham. Emphasizing the need for patience and persistence in Gods timing and the power of opposition to strengthen ones faith. Encouraging listeners to cultivate their faith and pray for an increase in it, with the belief that God can perform miracles and bring blessings and revival.

Declare and believe are not the same
In this article, Dr. Roberto Miranda discusses the difference between declaring and believing, emphasizing the importance of true faith and the role it plays in allowing miracles to happen.

James 2:20 - Cross Reference

But some man will say, How are the dead raised up? and with what body do they come? (1 Corinthians 15:35)

For as the body without the spirit is dead, so faith without works is dead also. (James 2:26)

Understand, ye brutish among the people: and ye fools, when will ye be wise? (Psalm 94:8)

Thus saith the LORD, What iniquity have your fathers found in me, that they are gone far from me, and have walked after vanity, and are become vain? (Jeremiah 2:5)

If any man among you seem to be religious, and bridleth not his tongue, but deceiveth his own heart, this man's religion is vain. (James 1:26)

He that tilleth his land shall be satisfied with bread: but he that followeth vain persons is void of understanding. (Proverbs 12:11)

For if a man think himself to be something, when he is nothing, he deceiveth himself. (Galatians 6:3)

For there are many unruly and vain talkers and deceivers, specially they of the circumcision: (Titus 1:10)

Beware lest any man spoil you through philosophy and vain deceit, after the tradition of men, after the rudiments of the world, and not after Christ. (Colossians 2:8)

For he knoweth vain men: he seeth wickedness also; will he not then consider it? (Job 11:11)

From which some having swerved have turned aside unto vain jangling; (1 Timothy 1:6)

Even so faith, if it hath not works, is dead, being alone. (James 2:17)

Because that, when they knew God, they glorified him not as God, neither were thankful; but became vain in their imaginations, and their foolish heart was darkened. (Romans 1:21)

For in Jesus Christ neither circumcision availeth any thing, nor uncircumcision; but faith which worketh by love. (Galatians 5:6)