6 I am astonished that you are so quickly deserting the one who called you to live in the grace of Christ and are turning to a different gospel— 7 which is really no gospel at all. Evidently some people are throwing you into confusion and are trying to pervert the gospel of Christ. 8 But even if we or an angel from heaven should preach a gospel other than the one we preached to you, let them be under God’s curse! 9 As we have already said, so now I say again: If anybody is preaching to you a gospel other than what you accepted, let them be under God’s curse!
It's very easy to be thrown into confusion, so many distractions can prevent us keeping our eyes on Christ.
Busy lives, financial worries, job insecurity and many other things can envelop us.
Paul was "astonished" that the people of Galatia had so soon been distracted from the gospel (Paul visited Galatia during his third missionary journey (53 - 58 AD), and it is believed that Galatians was written around 55 - 57 AD, a timeframe of only a couple of years between visit and letter).
Distractions, of course, are all around us - advertising enticing us into a different way of life, encouraging us to chase after prosperity, material posessions, the latest fashions etc.
Paul talks about false teachers being under God's curse - in this day and age, we don't tend to think of putting people under God's curse, and indeed, we are warned about being judgemental - I believe that we should leave judgement to God.
We do however, need to ask for discernment in all that we do, that we can make sure we can follow the true gospel, and not be distracted by inappropriate teaching, and false wisdom.
And as for the worries mentioned above, we can always pray, and ask God to guide us through those worrying times, and ask Him to keep our eyes fixed on Him.
31 So do not worry, saying, ‘What shall we eat?’ or ‘What shall we drink?’ or ‘What shall we wear?’ 32 For the pagans run after all these things, and your heavenly Father knows that you need them. 33 But seek first his kingdom and his righteousness, and all these things will be given to you as well. 34 Therefore do not worry about tomorrow, for tomorrow will worry about itself. Each day has enough trouble of its own. - Matthew Ch6 v 31-34.