Yes, in the context of falling from grace (even in respects to being justified by the law itself) a couple of verses after that Paul again touches on circumsion and uncircumcision (the issue at hand) in this way saying
Gal 5:6 For in Jesus Christ neither circumcision availeth any thing, nor uncircumcision;
but faith which worketh by love.
And the same, in this way in Corinthians
1 Cr 7:19 Circumcision is nothing, and uncircumcision is nothing,
but the keeping of the commandments of God.
And both (together) are found this way in Revelation
Rev 14:12 Here is the patience of the saints:
here are they that keep the commandments of God, and the faith of Jesus.
Gal 5:6 For in Jesus Christ neither circumcision availeth any thing, nor uncircumcision;
but faith which worketh by love.
And the same, in this way in Corinthians
1 Cr 7:19 Circumcision is nothing, and uncircumcision is nothing,
but the keeping of the commandments of God.
And both (together) are found this way in Revelation
Rev 14:12 Here is the patience of the saints:
here are they that keep the commandments of God, and the faith of Jesus.
Here's some more on FAITH...
1 Corinthians 4:2 “Moreover it is required in stewards, that a man be found faithful.”
1 Corinthians 16:13 Watch ye, stand fast in the faith, quit you like men, be strong.
2 Corinthians 1:24 “Not for that we have dominion over your faith, but are helpers of your joy: for by faith ye stand.”
2 Corinthians 13:5 “Examine yourselves, whether ye be in the faith; prove your own selves. Know ye not your own selves, how that Jesus Christ is in you, except ye be reprobates?”
Galatians 3:14 “That the blessing of Abraham might come on the Gentiles through Jesus Christ; that we might receive the promise of the Spirit through faith.”
Colossians 1:23 If ye continue in the faith grounded and settled, and be not moved away from the hope of the gospel, which ye have heard, and which was preached to every creature which is under heaven; whereof I Paul am made a minister;”
1 Thessalonians 3:5 For this cause, when I could no longer forbear, I sent to know your faith, lest by some means the tempter have tempted you, and our labour be in vain.
2 Thessalonians 3:2 “And that we may be delivered from unreasonable and wicked men: for all men have not faith.
1 Timothy 1:19 “Holding faith, and a good conscience; which some having put away concerning faith have made shipwreck:”
1 Timothy 3:9 “Holding the mystery of the faith in a pure conscience.”
1 Timothy 4:1 “Now the Spirit speaketh expressly, that in the latter times some shall depart from the faith, giving heed to seducing spirits, and doctrines of devils;”
1 Timothy 5:12 “Having damnation, because they have cast off their first faith.”
1 Timothy 6:10 “For the love of money is the root of all evil: which while some coveted after, they have erred from the faith, and pierced themselves through with many sorrows.”
1 Timothy 6:20-21 “O Timothy, keep that which is committed to thy trust, avoiding profane and vain babblings, and oppositions of science falsely so called:[SUP]21 [/SUP]Which some professing have erred concerning the faith. Grace be with thee. Amen.”
2 Timothy 3:8“Now as Jannes and Jambres withstood Moses, so do these also resist the truth: men of corrupt minds, reprobate concerning the faith.”
Hebrews 10:22Let us draw near with a true heart in full assurance of faith, having our hearts sprinkled from an evil conscience, and our bodies washed with pure water.
Hebrews 10:23 “Let us hold fast the profession of our faith without wavering; (for he is faithful that promised)
Hebrews 10:38 “Now the just shall live by faith: but if any man draw back, my soul shall have no pleasure in him.”
James 2:14What doth it profit, my brethren, though a man say he hath faith, and have not works? can faith save him?
James 2:17Even so faith, if it hath not works, is dead, being alone.
James 2:18Yea, 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 2:20 But wilt thou know, O vain man, that faith without works is dead?
James 2:22Seest thou how faith wrought with his works, and by works was faith made perfect?
James 2:24 Ye see then how that by works a man is justified, and not by faith only.
James 2:26 For as the body without the spirit is dead, so faith without works is dead also.
1 John 5:4 For whatsoever is born of God overcometh the world: and this is the victory that overcometh the world, even our faith.
Revelation 2:13 “I know thy works, and where thou dwellest, even where Satan's seat is: and thou holdest fast my name, and hast not denied my faith, even in those days wherein Antipas was my faithful martyr, who was slain among you, where Satan dwelleth.”
Revelation 17:14 “These shall make war with the Lamb, and the Lamb shall overcome them: for he is Lord of lords, and King of kings: and they that are with him are called, and chosen, and faithful.”