“The elder unto the wellbeloved Gaius, whom I love in the truth. Beloved, I wish above all things that thou mayest prosper and be in health, even as thy soul prospereth.” 3 John 1:1-2 KJV
Wish others well, especially those walking in truth; praying that their bodies be as healthy as is their souls.
You shouldn’t only pray for them, instead fill the hungry with good things. Hebrews 13:16 says, “But to do good and to communicate forget not: for with such sacrifices God is well pleased.”
Here in 3 John verse 5-6 says,
 Beloved, thou doest faithfully whatsoever thou doest to the brethren, and to strangers;  Which have borne witness of thy charity before the church: whom if thou bring forward on their journey after a godly sort, thou shalt do well:
“…thou shalt do well…” meaning that also is ‘doing good works for God.’
Thou shalt do well, when you do good to thy fellow believers, when you wish them well that they prosper and be in good health.
Take good care of others, just “as we have therefore opportunity, let us do good unto all men, especially unto them who are of the household of faith.” Galatians 6:10
Hebrews 13:7 says, “Remember them which have the rule over you, who have spoken unto you the word of God: whose faith follow, considering the end of their conversation.”
Think of all the good that has come from their lives, “Because that for his name’s sake they went forth, taking nothing of the Gentiles.” (3 John 1:7). TLB says, “For they are traveling for the Lord and take neither food, clothing, shelter, nor money from those who are not Christians, even though they have preached to them,” and verse 8 says, “So we ourselves should take care of them in order that we may become partners with them in the Lord’s work.”
He that doeth good is of God
3 John 1:11 says, “Beloved, follow not that which is evil, but that which is good. He that doeth good is of God: but he that doeth evil hath not seen God.”
Peace be to thee!