On Sunday we sang the worship song 'Authority.' Parts of the song declare

One word from You
Things change on Your authority
Your word it's true
Things change on you authority...
Will heaven not prevail
And strongholds not be moved...

On the day following, when they had come away from Bethany, He was hungry. And seeing in the distance a fig tree [covered] with leaves, He went to see if He could find any [fruit] on it [for in the fig tree the fruit appears at the same time as the leaves]. But when He came up to it, He found nothing but leaves, for the fig season had not yet come. And He said to it, No one ever again shall eat fruit from you. And His disciples were listening [to what He said]... And when evening came on, He and His disciples, as accustomed, went out of the city. In the morning, when they were passing along, they noticed that the fig tree was withered [completely] away to its roots. And Peter remembered and said to Him, Master, look! The fig tree which You doomed has withered away! And Jesus, replying, said to them, Have faith in God [constantly]. Truly I tell you, whoever says to this mountain, Be lifted up and thrown into the sea! and does not doubt at all in his heart but believes that what he says will take place, it will be done for him. For this reason I am telling you, whatever you ask for in prayer, believe (trust and be confident) that it is granted to you, and you will [get it]. Mark 11:12‭-‬14‭, ‬19‭-‬24 AMPC

The word sea is in reference to salt - the Dead Sea, where no living thing can live. As Believers, we are standing in our God given authority and declaring in faith, His word, to the strongholds/mountains within our families to be removed and thrown into the sea.

Examples of mountains - sickness, disease, debt, broken relationships, marriages, confusion, pride, rebellion, addictions, offence, depression, self-harm, doubt/unbelief, development delays, barrenness, hopelessness, insecurity, resistance, etc.