Deuteronomy 27:26

27:26 ‘Cursed is the one who refuses to keep the words of this law.’ Then all the people will say, ‘Amen!’

Matthew 5:18-19

5:18 I ¹  tell you the truth, ²  until heaven and earth pass away not the smallest letter or stroke of a letter ³  will pass from the law until everything takes place. 5:19 So anyone who breaks one of the least of these commands and teaches others ⁴  to do so will be called least in the kingdom of heaven, but whoever obeys them and teaches others to do so will be called great in the kingdom of heaven.

Galatians 3:10

3:10 For all who ⁵  rely on doing the works of the law are under a curse, because it is written, “Cursed is everyone who does not keep on doing everything written in the book of the law.” ⁶ 

[5:18]  ¹ tn Grk “For I tell.” Here an explanatory γάρ (gar) has not been translated.

[5:18]  ² tn Grk “Truly (ἀμήν, amhn), I say to you.”

[5:18]  ³ tn Grk “Not one iota or one serif.”

[5:19]  ⁴ tn Grk “teaches men” ( in a generic sense, people).

[3:10]  ⁵ tn Grk “For as many as.”

[3:10]  ⁶ tn Grk “Cursed is everyone who does not continue in all the things written in the book of the law, to do them.”