כי יפלא, he will set aside. The word means something similar to the word מפרש, in the sense of spelling out details. Anyone making a vow has to clearly define what he is vowing to do.

ערכך; the two letters כ which are repeated here are similar in construction to the word אדמומית, “reddish, derived from אודם, “red,” or לבנונית, “whitish,” from לבן, “white.”

'כל אשר יתן ממנו לה, if he had declared it sanctified, without specifying beyond this,

יהיה קודש, it is presumed to be intended as a sacrifice for the altar and not as a financial contribution of the maintenance of the Temple.

ואם כל בהמה, an animal already sanctified as a sacrifice which had in the meantime become ritually unclean so that it no longer qualified for the altar because it had developed a physical blemish;

והעמיד את הבהמה לפני הכהן, he will offer another animal which is its monetary equivalent as a sacrifice on the altar.

ואם מכר..לאיש אחר, “if the Temple treasurer had sold the field to someone else in the meantime;” its original owner can no longer redeem it but it is shared out (the proceeds received by the treasurer) among the priests at the next Jubilee year. It goes to the priests who are performing the duties assigned to them on that date.

תהיה אחוזתו, of the one who had declared it sanctified originally.

לאשר קנהו מאתו for the one who has bought it cannot in turn sanctify it except for the crops grown on it between then and the advent of the next Jubilee year.

לא יקדיש איש אותו, no one can declare it as sanctified to be a different category of sacrifice. Seeing it had been born sanctified, the owner cannot change its status.

ואם בבהמה הטמאה, a truly ritually unclean species of animal, [such as pig, for instance, Ed.] which had been declared as holy; such an animal is subject to the redemption legislation. Our sages stipulate, however, that the unfit animal under discussion which is unblemished is treated the same as if it had been blemished. (Temurah 32/33)

יחרם מן האדם, a person who has been convicted of the death penalty is not subject to redemption if he had been declared as sanctified.

מעשר הארץ, a reference to the second tithe,מעשר שני.