Filipi 2:21

2:21 Others are busy with their own concerns, not those of Jesus Christ.

Filipi 3:2

3:2 Beware of the dogs, ¹  beware of the evil workers, beware of those who mutilate the flesh! ² 

Filipi 4:22-23

4:22 All the saints greet you, especially those who belong to Caesar’s household. 4:23 The grace of the Lord Jesus Christ be with your spirit. ³ 

[3:2]  ¹ sn Dogs is a figurative reference to false teachers whom Paul regards as just as filthy as dogs.

[3:2]  ² tn Grk “beware of the mutilation.”

[4:23]  ³ tc Most witnesses, including several important ones (Ì⁴⁶ א A D Ψ 33 Ï lat sy bo), have ἀμήν (amhn, “amen”) at the end of this letter, while an impressive combination of Alexandrian and Western mss (B F G 075 6 1739* 1881 sa) lack the valedictory particle. Such a conclusion is routinely added by scribes to NT books because a few of these books originally had such an ending (cf. Rom 16:27; Gal 6:18; Jude 25). A majority of Greek witnesses have the concluding ἀμήν in every NT book except Acts, James, and 3 John (and even in these books, ἀμήν is found in some witnesses). It is thus a predictable variant. Thus, on internal grounds, with sufficient support from external evidence, the preferred reading is the omission of ἀμήν.