“Exert every effort ¹  to enter through the narrow door, because many, I tell you, will try to enter and will not be able to.

If an iron axhead ¹  is blunt and a workman ²  does not sharpen ³  its edge, ⁴  he must exert a great deal of effort; ⁵  so wisdom has the advantage of giving success.

All of you, gather together and listen! Who among them ¹  announced these things? The Lord’s ally ²  will carry out his desire against Babylon; he will exert his power against the Babylonians. ³