New Revised Standard Version
Woe to you, scribes and Pharisees, hypocrites! For you cross sea and land to make a single convert, and you make the new convert twice as much a child of hell as yourselves.

Contemporary English Version
You Pharisees and teachers of the Law of Moses are in for trouble! You're nothing but show-offs. You travel over land and sea to win one follower. And when you have done so, you make that person twice as fit for hell as you are.

New American Bible
“Woe to you, scribes and Pharisees, you hypocrites. You traverse sea and land to make one convert, and when that happens you make him a child of Gehenna twice as much as yourselves.

Douay-Rheims Bible
Woe to you, scribes and Pharisees, hypocrites, because you go round about the sea and the land to make one proselyte. And when he is made, you make him the child of hell twofold more than yourselves.

Woe to you, scribes and Pharisees, hypocrites, because you go round about the sea and the land to make one proselyte. And when he is made, you make him the child of hell twofold more than yourselves.

for.

Galatians 4:17 They are zealous in your regard not well: but they would exclude you, that you might be zealous for them.

Galatians 6:12 For as many as desire to please in the flesh, they constrain you to be circumcised, only that they may not suffer the persecution of the cross of Christ.

proselyte.

Esther 8:17 And in all peoples, cities, and provinces, whithersoever the king's commandments came, there was wonderful rejoicing, feasts and banquets, and keeping holy day: Insomuch that many of other nations and religion, joined themselves to their worship and ceremonies. For a great dread of the name of the Jews had fallen upon all.

Acts 2:10 Phrygia and Pamphylia, Egypt and the parts of Libya about Cyrene, and strangers of Rome,

Acts 13:43 And when the synagogue was broken up, many of the Jews and of the strangers who served God followed Paul and Barnabas: who, speaking to them, persuaded them to continue in the grace of God.

ye make.

John 8:44 You are of your father the devil: and the desires of your father you will do. He was a murderer from the beginning: and he stood not in the truth, because truth is not in him. When he speaketh a lie, he speaketh of his own: for he is a liar, and the father thereof.

Acts 13:10 Said: O full of all guile and of all deceit, child of the devil, enemy of all justice, thou ceases not to pervert the right ways of the Lord.

Acts 14:2,19 But the unbelieving Jews stirred up and incensed the minds of the Gentiles against the brethren. . . .

Acts 17:5,6,13 But the Jews, moved with envy and taking unto them some wicked men of the vulgar sort and making a tumult, set the city in an uproar: and besetting Jason's house, sought to bring them out unto the people. . . .

Ephesians 2:3 In which also we all conversed in time past, in the desires of our flesh, fulfilling the will of the flesh and of our thoughts, and were by nature children of wrath, even as the rest: