Yakobus 1:4

1:4 And let endurance have its perfect effect, so that you will be perfect and complete, not deficient in anything.

Yakobus 2:21

2:21 Was not Abraham our father justified by works when he offered Isaac his son on the altar?

Yakobus 2:23

2:23 And the scripture was fulfilled that says, “Now Abraham believed God and it was counted to him for righteousness,” ¹  and he was called God’s friend. ² 

[2:23]  ¹ sn A quotation from Gen 15:6.

[2:23]  ² sn An allusion to 2 Chr 20:7; Isa 41:8; 51:2; Dan 3:35 (LXX), in which Abraham is called God’s “beloved.”