Matthew 21:21 in 8 translations

Jesus answered and said unto them, Verily I say unto you, If ye have faith, and doubt not, ye shall not only do this to the fig tree, but also if ye shall say unto this mountain, Be thou removed, and be thou cast into the sea; it shall be done.

1611 / 1769 · Public domain · The Authorised Version, revised to the 1769 Blayney text. Includes the Apocrypha as printed in 1611.

And Jesus answered and said unto them, Verily I say unto you, If ye have faith, and doubt not, ye shall not only do what is done to the fig tree, but even if ye shall say unto this mountain, Be thou taken up and cast into the sea, it shall be done.

1901 · Public domain · The American revision of the English Revised Version. Deliberately literal, and the base text behind several later translations.

And Jesus answering said to them, Verily I say unto you, If ye have faith, and do not doubt, not only shall ye do what [is done] to the fig-tree, but even if ye should say to this mountain, Be thou taken away and be thou cast into the sea, it shall come to pass.

1890 · Public domain · John Nelson Darby's translation, made for close study rather than public reading. Often exposes grammatical detail other versions smooth over.

And Jesus answering said to them, `Verily I say to you, If ye may have faith, and may not doubt, not only this of the fig-tree shall ye do, but even if to this mount ye may say, Be lifted up and be cast into the sea, it shall come to pass;

1898 · Public domain · The most extreme word-for-word rendering here, keeping Hebrew and Greek tense and word order at the cost of natural English.

Jesus answered them, “Most certainly I tell you, if you have faith, and don’t doubt, you will not only do what was done to the fig tree, but even if you told this mountain, ‘Be taken up and cast into the sea,’ it would be done.

2000s · Public domain · A modern-English update of the ASV. Reads close to contemporary speech while staying in the literal tradition. Includes the Apocrypha.

“I tell you,” replied Jesus, “if you have faith, without ever a doubt, you will do what not only what has been done to the fig tree, but, even if you should say to this hill ‘Be lifted up and hurled into the sea!’ it would be done.

in progress · Public domain (CC0) · A modern open-licensed translation, still being completed. Some Old Testament books are not yet available.

‘I tell you,’ replied Jesus, ‘if you have faith, without ever a doubt, you will do what not only what has been done to the fig tree, but, even if you should say to this hill “Be lifted up and hurled into the sea!” it would be done.

in progress · Public domain (CC0) · The Commonwealth spelling edition of the Open English Bible. Identical wording to the US edition apart from spelling.

And Jesus in answer said to them, Truly I say to you, If you have faith, without doubting, not only may you do what has been done to the fig-tree, but even if you say to this mountain, Be taken up and put into the sea, it will be done.

1949 · Public domain · Written with roughly a thousand basic English words plus a small Bible vocabulary. The plainest reading available here.