Romans 3:20 (AMP)
For no person will be justified [freed of guilt and declared righteous] in His sight by [trying to do] the works of the Law. For through the Law we become conscious of sin [and the recognition of sin directs us toward repentance, but provides no remedy for sin].
Psalm 19:1 (AMP)
The heavens are telling of the glory of God;
And the expanse [of heaven] is declaring the work of His hands
James 2:26 (AMP)
For just as the [human] body without the spirit is dead, so faith without works [of obedience] is also dead.
Hebrews 11:17-22 (AMP)
By faith Abraham, when he was tested [that is, as the testing of his faith was still in progress], offered up Isaac, and he who had received the promises [of God] was ready to sacrifice his only son [of promise]; 18 to whom it was said, “Through Isaac your descendants shall be called.” 19 For he considered [it reasonable to believe] that God was able to raise Isaac even from among the dead. [Indeed, in the sense that he was prepared to sacrifice Isaac in obedience to God] Abraham did receive him back [from the dead] figuratively speaking. 20 By faith Isaac blessed Jacob and Esau [believing what God revealed to him], even regarding things to come. 21 By faith Jacob, as he was dying, blessed each of the sons of Joseph, and bowed in worship, leaning on the top of his staff. 22 By faith Joseph, when he was dying, referred to [the promise of God for] the exodus of the sons of Israel [from Egypt], and gave instructions concerning [the burial of] his bones [in the land of the promise].
Matthew 17:19-21 (AMP)
Then the disciples came to Jesus privately and asked, “Why could we not drive it out?” 20 He answered, “Because of your little faith [your lack of trust and confidence in the power of God]; for I assure you and most solemnly say to you, if you have [living] faith the size of a mustard seed, you will say to this mountain, ‘Move from here to there,’ and [if it is God’s will] it will move; and nothing will be impossible for you. 21 [But this kind of demon does not go out except by prayer and fasting.]”