NET

21 Jesus answered them, “I tell you the truth, if you have faith and do not doubt, not only will you do what was done to the fig tree, but even if you say to this mountain, ‘Be lifted up and thrown into the sea,’ it will happen.

Darby

21 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.

KJV

21 Jesus answered and said unto them, “Verily I say unto you, If ye have faith, and doubt not, ye shall not only do this” [which is done] “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.”

Strong's

21 Jesus ^G2424 answered^G611 and^G1161 said^G2036 unto them^G846, Verily^G281 I say^G3004 unto you^G5213, If^G1437 ye have^G2192 faith^G4102, and^G2532 doubt^G1252 not^G3361, ye shall^G4160 not^G3756 only^G3440 do^G4160 this^G3440 which is done to the fig tree^G4808, but^G235 also if^G2579 ye shall say^G2036 unto this^G5129 mountain^G3735, Be thou removed^G142, and^G2532 be thou cast^G906 into^G1519 the sea^G2281; it shall be done^G1096.